$HMST
HomeStreet Inc Stock $hmst

$hmst Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000151871519000056 Filed on March 06, 2019

Income Statement

Concept	2017 Q4	2017 Q3	2017 Q2
Revenue	$63.69M	$61.98M	$56.74M
YoY Change	12.0%	12.02%	10.63%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development		$8.760M	$8.172M
YoY Change		11.22%	-3.26%
% of Gross Profit
Depreciation & Amortization	$5.800M	$5.900M	$6.100M
YoY Change	100.0%	40.48%	27.08%
% of Gross Profit
Operating Expenses		$8.760M	$8.172M
YoY Change		11.22%	-3.26%
Operating Profit
YoY Change
Interest Expense	$12.61M	$11.14M	$9.874M
YoY Change	43.46%	30.64%	45.01%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$17.04M	$19.78M	$16.13M
YoY Change	400.35%	-53.9%	-53.68%
Income Tax	-$17.87M	$5.938M	$4.923M
% Of Pretax Income	-104.88%	30.02%	30.52%
Net Earnings	$34.92M	$13.84M	$11.21M
YoY Change	1422.01%	-50.04%	-48.46%
Net Earnings / Revenue	54.82%	22.33%	19.75%
Basic Earnings Per Share	$1.30	$0.51	$0.42
Diluted Earnings Per Share	$1.29	$0.51	$0.41
COMMON SHARES
Basic Shares Outstanding	26.89M shares	26.88M shares	26.87M shares
Diluted Shares Outstanding		27.09M shares	27.08M shares

Balance Sheet

Concept	2017 Q4	2017 Q3	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$977.0M	$974.5M	$991.0M
YoY Change	-11.0%	-6.95%	1.78%
Cash & Equivalents	$72.72M	$55.05M	$54.45M
Short-Term Investments	$904.3M	$919.5M	$936.5M
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$104.7M	$104.4M	$101.8M
YoY Change	34.8%	43.09%	49.96%
Goodwill	$22.56M	$22.56M	$22.18M
YoY Change	1.75%	13.39%	11.74%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$6.742B	$6.796B	$6.587B
YoY Change	7.98%	9.15%	10.86%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$172.2M	$193.9M	$190.4M
YoY Change	-9.94%	27.57%	37.67%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$172.2M	$193.9M	$190.4M
YoY Change	-9.94%	27.57%	37.67%
LONG-TERM LIABILITIES
Long-Term Debt	$125.3M	$125.3M	$125.2M
YoY Change	0.16%	0.16%	0.08%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$125.3M	$125.3M	$125.2M
YoY Change	0.16%	0.16%	0.08%
TOTAL LIABILITIES
Total Short-Term Liabilities	$172.2M	$193.9M	$190.4M
Total Long-Term Liabilities	$125.3M	$125.3M	$125.2M
Total Liabilities	$6.038B	$6.125B	$5.931B
YoY Change	7.54%	8.59%	10.2%
SHAREHOLDERS EQUITY
Retained Earnings	$372.0M	$337.1M	$323.2M
YoY Change	22.75%	12.08%	18.38%
Common Stock	$511.0K	$511.0K	$511.0K
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$704.4M	$671.5M	$655.8M
YoY Change
Total Liabilities & Shareholders Equity	$6.742B	$6.796B	$6.587B
YoY Change	7.98%	9.15%	10.86%

Cashflow Statement

Concept	2017 Q4	2017 Q3	2017 Q2
OPERATING ACTIVITIES
Net Income	$34.92M	$13.84M	$11.21M
YoY Change	1422.01%	-50.04%	-48.46%
Depreciation, Depletion And Amortization	$5.800M	$5.900M	$6.100M
YoY Change	100.0%	40.48%	27.08%
Cash From Operating Activities	$190.7M	-$22.00M	-$157.4M
YoY Change	39.71%	-69.61%	149.84%
INVESTING ACTIVITIES
Capital Expenditures	-$6.600M	-$6.900M	-$6.600M
YoY Change	-9.59%	21.05%	24.53%
Acquisitions
YoY Change
Other Investing Activities	-$108.0M	-$128.9M	$100.0K
YoY Change	426.83%	18.37%	-100.02%
Cash From Investing Activities	-$114.5M	-$135.9M	-$6.600M
YoY Change	311.87%	18.59%	-98.41%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-59.80M	158.5M	156.9M
YoY Change	-46.03%	-19.87%	-67.12%
NET CHANGE
Cash From Operating Activities	190.7M	-22.00M	-157.4M
Cash From Investing Activities	-114.5M	-135.9M	-6.600M
Cash From Financing Activities	-59.80M	158.5M	156.9M
Net Change In Cash	16.40M	600.0K	-7.100M
YoY Change	-880.95%	-94.44%	491.67%
FREE CASH FLOW
Cash From Operating Activities	$190.7M	-$22.00M	-$157.4M
Capital Expenditures	-$6.600M	-$6.900M	-$6.600M
Free Cash Flow	$197.3M	-$15.10M	-$150.8M
YoY Change	37.2%	-77.36%	161.35%

Facts In Submission

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CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2166000	USD
CY2018	us-gaap	Legal Fees LegalFees	3931000	USD
CY2017	us-gaap	Legal Fees LegalFees	1410000	USD
CY2016	us-gaap	Legal Fees LegalFees	1867000	USD
CY2018	us-gaap	Professional Fees ProfessionalFees	3071000	USD
CY2017	us-gaap	Professional Fees ProfessionalFees	3467000	USD
CY2016	us-gaap	Professional Fees ProfessionalFees	4958000	USD
CY2018	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	4091000	USD
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	3279000	USD
CY2016	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	3414000	USD
CY2018	us-gaap	Occupancy Net OccupancyNet	38304000	USD
CY2017	us-gaap	Occupancy Net OccupancyNet	38268000	USD
CY2016	us-gaap	Occupancy Net OccupancyNet	30530000	USD
CY2018	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	35139000	USD
CY2017	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	33143000	USD
CY2016	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	33063000	USD
CY2018	hmst	Netcostincomefromoperationsandsaleofotherrealestateowned Netcostincomefromoperationsandsaleofotherrealestateowned	-139000	USD
CY2017	hmst	Netcostincomefromoperationsandsaleofotherrealestateowned Netcostincomefromoperationsandsaleofotherrealestateowned	-530000	USD
CY2016	hmst	Netcostincomefromoperationsandsaleofotherrealestateowned Netcostincomefromoperationsandsaleofotherrealestateowned	1764000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	390573000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	439653000	USD
CY2016	us-gaap	Noninterest Expense NoninterestExpense	444322000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	45865000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	66189000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	90777000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5838000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2757000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32626000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	40027000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	68946000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	58151000	USD
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.48
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.57
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.36
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.47
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.54
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.34
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26970916	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26864657	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	24615990	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27168135	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27092019	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	24843683	shares
CY2018	us-gaap	Net Income Loss NetIncomeLoss	40027000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	68946000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	58151000	USD
CY2018	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-8132000	USD
CY2017	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	3607000	USD
CY2016	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-6313000	USD
CY2018	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	185000	USD
CY2017	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	317000	USD
CY2016	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	1650000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-8317000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3290000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-7963000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	31710000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	72236000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	50188000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	465275000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	58151000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	1788000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	112033000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-7963000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	629284000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	68946000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	2502000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	358000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3290000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	704380000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	40027000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	3012000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	418000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-8317000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	739520000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	40027000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	68946000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	58151000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	24893000	USD
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	22645000	USD
CY2016	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	15667000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	750000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4100000	USD
CY2018	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	93766000	USD
CY2017	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	218331000	USD
CY2016	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	268104000	USD
CY2018	hmst	Gains Losses On Loans Held For Investment GainsLossesOnLoansHeldForInvestment	107000	USD
CY2017	hmst	Gains Losses On Loans Held For Investment GainsLossesOnLoansHeldForInvestment	1030000	USD
CY2016	hmst	Gains Losses On Loans Held For Investment GainsLossesOnLoansHeldForInvestment	354000	USD
CY2018	hmst	Increase Decreasein Mortgage Servicing Rights IncreaseDecreaseinMortgageServicingRights	61871000	USD
CY2017	hmst	Increase Decreasein Mortgage Servicing Rights IncreaseDecreaseinMortgageServicingRights	78412000	USD
CY2016	hmst	Increase Decreasein Mortgage Servicing Rights IncreaseDecreaseinMortgageServicingRights	90520000	USD
CY2018	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	-6711000	USD
CY2017	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	36615000	USD
CY2016	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	13280000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	235000	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	489000	USD
CY2016	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	2539000	USD
CY2018	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	1956000	USD
CY2017	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	4600000	USD
CY2016	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	2607000	USD
CY2018	hmst	Netfairvalueadjustmentgainlossandprovisionon Other Real Estate Owned NetfairvalueadjustmentgainlossandprovisiononOtherRealEstateOwned	171000	USD
CY2017	hmst	Netfairvalueadjustmentgainlossandprovisionon Other Real Estate Owned NetfairvalueadjustmentgainlossandprovisiononOtherRealEstateOwned	383000	USD
CY2016	hmst	Netfairvalueadjustmentgainlossandprovisionon Other Real Estate Owned NetfairvalueadjustmentgainlossandprovisiononOtherRealEstateOwned	-1767000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-244000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-215000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-253000	USD
CY2018	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	-5096000	USD
CY2017	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	-5054000	USD
CY2016	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-12777000	USD
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	2094000	USD
CY2016	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-31490000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	3361000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	2856000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	2062000	USD
CY2018	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	6075290000	USD
CY2017	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	7763844000	USD
CY2016	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	9169488000	USD
CY2018	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	6448808000	USD
CY2017	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	8084916000	USD
CY2016	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	9379720000	USD
CY2018	hmst	Increase Decrease In Accounts Receivable And Other Assets IncreaseDecreaseInAccountsReceivableAndOtherAssets	8030000	USD
CY2017	hmst	Increase Decrease In Accounts Receivable And Other Assets IncreaseDecreaseInAccountsReceivableAndOtherAssets	-26470000	USD
CY2016	hmst	Increase Decrease In Accounts Receivable And Other Assets IncreaseDecreaseInAccountsReceivableAndOtherAssets	60927000	USD
CY2018	hmst	Increase Decrease In Accounts Payable And Other Liabilities IncreaseDecreaseInAccountsPayableAndOtherLiabilities	4058000	USD
CY2017	hmst	Increase Decrease In Accounts Payable And Other Liabilities IncreaseDecreaseInAccountsPayableAndOtherLiabilities	19957000	USD
CY2016	hmst	Increase Decrease In Accounts Payable And Other Liabilities IncreaseDecreaseInAccountsPayableAndOtherLiabilities	-43255000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	286011000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	159327000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-44794000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	189660000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	368071000	USD
CY2016	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	743861000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	46081000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	397492000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	164429000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	106798000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	105801000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	112245000	USD
CY2018	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	836000	USD
CY2017	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	6105000	USD
CY2016	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	5672000	USD
CY2018	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	548770000	USD
CY2017	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	324745000	USD
CY2016	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	153518000	USD
CY2018	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	1953000	USD
CY2017	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	0	USD
CY2016	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	0	USD
CY2018	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	65373000	USD
CY2017	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	0	USD
CY2016	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	0	USD
CY2018	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	4000	USD
CY2017	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	565000	USD
CY2016	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	0	USD
CY2018	hmst	Capital Expenditures Related To Other Real Estate Owned CapitalExpendituresRelatedToOtherRealEstateOwned	0	USD
CY2017	hmst	Capital Expenditures Related To Other Real Estate Owned CapitalExpendituresRelatedToOtherRealEstateOwned	57000	USD
CY2016	hmst	Capital Expenditures Related To Other Real Estate Owned CapitalExpendituresRelatedToOtherRealEstateOwned	720000	USD
CY2018	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	1132521000	USD
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	998638000	USD
CY2016	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	609981000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	808000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1148000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9724000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	42286000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24482000	USD
CY2018	us-gaap	Cash Acquired In Excess Of Payments To Acquire Business CashAcquiredInExcessOfPaymentsToAcquireBusiness	0	USD
CY2017	us-gaap	Cash Acquired In Excess Of Payments To Acquire Business CashAcquiredInExcessOfPaymentsToAcquireBusiness	19285000	USD
CY2016	us-gaap	Cash Acquired In Excess Of Payments To Acquire Business CashAcquiredInExcessOfPaymentsToAcquireBusiness	122760000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-565196000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-556189000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-819272000	USD
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	290152000	USD
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	309798000	USD
CY2016	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	919497000	USD
CY2018	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	11729500000	USD
CY2017	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	10972200000	USD
CY2016	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	14734636000	USD
CY2018	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	11776000000	USD
CY2017	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	10861200000	USD
CY2016	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	14898636000	USD
CY2018	hmst	Proceedsfrom Federal Funds Purchasedand Securities Soldunder Agreementsto Repurchase ProceedsfromFederalFundsPurchasedandSecuritiesSoldunderAgreementstoRepurchase	3511070000	USD
CY2017	hmst	Proceedsfrom Federal Funds Purchasedand Securities Soldunder Agreementsto Repurchase ProceedsfromFederalFundsPurchasedandSecuritiesSoldunderAgreementstoRepurchase	875166000	USD
CY2016	hmst	Proceedsfrom Federal Funds Purchasedand Securities Soldunder Agreementsto Repurchase ProceedsfromFederalFundsPurchasedandSecuritiesSoldunderAgreementstoRepurchase	64804000	USD
CY2018	hmst	Payments For Securities Sold Under Agreements To Repurchase PaymentsForSecuritiesSoldUnderAgreementsToRepurchase	3492070000	USD
CY2017	hmst	Payments For Securities Sold Under Agreements To Repurchase PaymentsForSecuritiesSoldUnderAgreementsToRepurchase	875166000	USD
CY2016	hmst	Payments For Securities Sold Under Agreements To Repurchase PaymentsForSecuritiesSoldUnderAgreementsToRepurchase	64804000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	30000000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2016	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	30000000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2018	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	179789000	USD
CY2017	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	187766000	USD
CY2016	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	284662000	USD
CY2018	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	178647000	USD
CY2017	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	194058000	USD
CY2016	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	279436000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	-65000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	63184000	USD
CY2018	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	0	USD
CY2017	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	-45000	USD
CY2016	us-gaap	Proceeds From Repurchase Of Equity ProceedsFromRepurchaseOfEquity	58713000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	68000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	11000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2713000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	263862000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	414407000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	885333000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-15323000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	17545000	USD
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	21267000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	73909000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	56364000	USD
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	35097000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	58586000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	73909000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	56364000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	604000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1191000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	2432000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	57982000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	72718000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	53932000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	67552000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	42889000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	28672000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-5785000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-21885000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14441000	USD
CY2018	hmst	Loans Held For Investment Foreclosed And Transferred To Other Real Estate Owned LoansHeldForInvestmentForeclosedAndTransferredToOtherRealEstateOwned	455000	USD
CY2017	hmst	Loans Held For Investment Foreclosed And Transferred To Other Real Estate Owned LoansHeldForInvestmentForeclosedAndTransferredToOtherRealEstateOwned	1125000	USD
CY2016	hmst	Loans Held For Investment Foreclosed And Transferred To Other Real Estate Owned LoansHeldForInvestmentForeclosedAndTransferredToOtherRealEstateOwned	2056000	USD
CY2018	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	634205000	USD
CY2017	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	419494000	USD
CY2016	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	169745000	USD
CY2018	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	71584000	USD
CY2017	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	100049000	USD
CY2016	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	12311000	USD
CY2018	hmst	Loans Recognized With Right To Repurchase LoansRecognizedWithRightToRepurchase	-1674000	USD
CY2017	hmst	Loans Recognized With Right To Repurchase LoansRecognizedWithRightToRepurchase	3534000	USD
CY2016	hmst	Loans Recognized With Right To Repurchase LoansRecognizedWithRightToRepurchase	6775000	USD
CY2018	hmst	Receivablefromsaleofmortgageservicingrights Receivablefromsaleofmortgageservicingrights	3337000	USD
CY2017	hmst	Receivablefromsaleofmortgageservicingrights Receivablefromsaleofmortgageservicingrights	0	USD
CY2016	hmst	Receivablefromsaleofmortgageservicingrights Receivablefromsaleofmortgageservicingrights	0	USD
CY2018	hmst	Purchaseofsinglefamilymortgageloansfrom Wms PurchaseofsinglefamilymortgageloansfromWMS	530900000	USD
CY2017	hmst	Purchaseofsinglefamilymortgageloansfrom Wms PurchaseofsinglefamilymortgageloansfromWMS	574300000	USD
CY2016	hmst	Purchaseofsinglefamilymortgageloansfrom Wms PurchaseofsinglefamilymortgageloansfromWMS	589200000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	22175000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	389000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	22564000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2018Q4	us-gaap	Goodwill Goodwill	22564000	USD
CY2018	us-gaap	Advertising Cost Policy Expensed Advertising Cost AdvertisingCostPolicyExpensedAdvertisingCost	Advertising Expense<div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Advertising costs, which we consider to be media and marketing materials, are expensed as incurred. We incurred </span><span style="font-family:inherit;font-size:10pt;"><span>$6.9 million</span></span><span style="font-family:inherit;font-size:10pt;">, </span><span style="font-family:inherit;font-size:10pt;"><span>$6.8 million</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;"><span>$7.4 million</span></span><span style="font-family:inherit;font-size:10pt;"> in advertising expense during the years ended </span><span style="font-family:inherit;font-size:10pt;">December 31, 2018</span><span style="font-family:inherit;font-size:10pt;">, </span><span style="font-family:inherit;font-size:10pt;">2017</span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;">2016</span><span style="font-family:inherit;font-size:10pt;">, respectively. </span></div><br/>
CY2018	us-gaap	Advertising Expense AdvertisingExpense	6900000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	6800000	USD
CY2016	us-gaap	Advertising Expense AdvertisingExpense	7400000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	873438000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2022000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	23492000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	851968000	USD
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	71285000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	230000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	969000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	70546000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	857204000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3069000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	14005000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	846268000	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	58036000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	449000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	357000	USD
CY2018Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield After One Through Five Years HeldToMaturitySecuritiesDebtMaturitiesAverageYieldAfterOneThroughFiveYears	0.0291
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	58128000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1902000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	138019000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	21590000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	560613000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	23492000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	698632000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	222000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	22921000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	747000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	28726000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	969000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	51647000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2434000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	265576000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	11571000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	414529000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	14005000	USD
CY2017Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	680105000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	177000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	24186000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	180000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	13917000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	357000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	38103000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	5670000	USD
CY2018Q4	hmst	Available For Sale Securities Debt Maturities Within One Year Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearWeightedAverageYield	0.0212
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	54308000	USD
CY2018Q4	hmst	Available For Sale Securities Debt Maturities After One Through Five Years Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsWeightedAverageYield	0.0224
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	106915000	USD
CY2018Q4	hmst	Available For Sale Securities Debt Maturities After Five Through Ten Years Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsWeightedAverageYield	0.0281
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	685075000	USD
CY2018Q4	hmst	Available For Sale Securities Debt Maturities After Ten Years Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsWeightedAverageYield	0.0290
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	851968000	USD
CY2018Q4	hmst	Available For Sale Securities Debt Maturities Without Single Maturity Date Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateWeightedAverageYield	0.0284
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	0	USD
CY2018Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield Within One Year HeldToMaturitySecuritiesDebtMaturitiesAverageYieldWithinOneYear	0
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	21142000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	10530000	USD
CY2018Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield After Five Through Ten Years HeldToMaturitySecuritiesDebtMaturitiesAverageYieldAfterFiveThroughTenYears	0.0245
CY2018Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	38874000	USD
CY2018Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield After Ten Years HeldToMaturitySecuritiesDebtMaturitiesAverageYieldAfterTenYears	0.0307
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	70546000	USD
CY2018Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield HeldToMaturitySecuritiesDebtMaturitiesAverageYield	0.0293
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	2686000	USD
CY2017Q4	hmst	Available For Sale Securities Debt Maturities Within One Year Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearWeightedAverageYield	0.0190
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	58889000	USD
CY2017Q4	hmst	Available For Sale Securities Debt Maturities After One Through Five Years Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsWeightedAverageYield	0.0258
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	105530000	USD
CY2017Q4	hmst	Available For Sale Securities Debt Maturities After Five Through Ten Years Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsWeightedAverageYield	0.0267
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	679163000	USD
CY2017Q4	hmst	Available For Sale Securities Debt Maturities After Ten Years Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsWeightedAverageYield	0.0290
CY2017Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	846268000	USD
CY2017Q4	hmst	Available For Sale Securities Debt Maturities Without Single Maturity Date Weighted Average Yield AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateWeightedAverageYield	0.0285
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	0	USD
CY2017Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield Within One Year HeldToMaturitySecuritiesDebtMaturitiesAverageYieldWithinOneYear	0
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	8423000	USD
CY2017Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield After One Through Five Years HeldToMaturitySecuritiesDebtMaturitiesAverageYieldAfterOneThroughFiveYears	0.0241
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	18982000	USD
CY2017Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield After Five Through Ten Years HeldToMaturitySecuritiesDebtMaturitiesAverageYieldAfterFiveThroughTenYears	0.0268
CY2017Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	30723000	USD
CY2017Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield After Ten Years HeldToMaturitySecuritiesDebtMaturitiesAverageYieldAfterTenYears	0.0310
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	58128000	USD
CY2017Q4	hmst	Held To Maturity Securities Debt Maturities Average Yield HeldToMaturitySecuritiesDebtMaturitiesAverageYield	0.0286
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	46081000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	397492000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	164429000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	310000	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1214000	USD
CY2016	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	2782000	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	75000	USD
CY2017	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	725000	USD
CY2016	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	243000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Federal Home Loan Bank PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForFederalHomeLoanBank	63179000	USD
CY2017Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Federal Home Loan Bank PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForFederalHomeLoanBank	425866000	USD
CY2018Q4	hmst	Pledged Assets Not Separately Reported Securities Pledged For Stateand Local Governments PledgedAssetsNotSeparatelyReportedSecuritiesPledgedForStateandLocalGovernments	126565000	USD
CY2017Q4	hmst	Pledged Assets Not Separately Reported Securities Pledged For Stateand Local Governments PledgedAssetsNotSeparatelyReportedSecuritiesPledgedForStateandLocalGovernments	118828000	USD
CY2018Q4	hmst	Pledged Financial Instruments Securitiespledgedtosecurederivativesinaliabilityposition PledgedFinancialInstrumentsSecuritiespledgedtosecurederivativesinaliabilityposition	5077000	USD
CY2017Q4	hmst	Pledged Financial Instruments Securitiespledgedtosecurederivativesinaliabilityposition PledgedFinancialInstrumentsSecuritiespledgedtosecurederivativesinaliabilityposition	7308000	USD
CY2018Q4	hmst	Pledged Assets Separately Reported Other Securities Pledged PledgedAssetsSeparatelyReportedOtherSecuritiesPledged	5147000	USD
CY2017Q4	hmst	Pledged Assets Separately Reported Other Securities Pledged PledgedAssetsSeparatelyReportedOtherSecuritiesPledged	6089000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	199968000	USD
CY2017Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities Pledged PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesPledged	558091000	USD
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Securities For Repurchase Agreements PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements	0	USD
CY2018	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	8500000	USD
CY2017	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	8800000	USD
CY2016	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	6300000	USD
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2018Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	5093747000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	4529627000	USD
CY2018Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	23094000	USD
CY2017Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	14686000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	5116841000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4544313000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	41470000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	37847000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	5075371000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4506466000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	1968000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	4379000	USD
CY2018	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	1968000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	2411000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	0	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	1968000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39116000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	35264000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	30659000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	750000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4100000	USD
CY2018	hmst	Financing Receivable Allowancefor Credit Losses Writedowns Recovery FinancingReceivableAllowanceforCreditLossesWritedownsRecovery	-797000	USD
CY2017	hmst	Financing Receivable Allowancefor Credit Losses Writedowns Recovery FinancingReceivableAllowanceforCreditLossesWritedownsRecovery	-3102000	USD
CY2016	hmst	Financing Receivable Allowancefor Credit Losses Writedowns Recovery FinancingReceivableAllowanceforCreditLossesWritedownsRecovery	-505000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	42913000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39116000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	35264000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	41470000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	37847000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	34001000	USD
CY2018Q4	hmst	Allowance For Unfunded Commitments AllowanceForUnfundedCommitments	1443000	USD
CY2017Q4	hmst	Allowance For Unfunded Commitments AllowanceForUnfundedCommitments	1269000	USD
CY2016Q4	hmst	Allowance For Unfunded Commitments AllowanceForUnfundedCommitments	1263000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	42913000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39116000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	35264000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39116000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1347000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2144000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	42913000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	35264000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1120000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	4222000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	750000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39116000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	42680000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	233000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	42913000	USD
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	5016606000	USD
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	73084000	USD
CY2018Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	5089690000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	42680000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	233000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	42913000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	38827000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	289000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39116000	USD
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4440535000	USD
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	83615000	USD
CY2017Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	4524150000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	38827000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	289000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39116000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	71237000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	73113000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	1847000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	1847000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	233000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	73084000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	74960000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	233000	USD
CY2018Q4	hmst	Financing Receivable Modifications Performing Recorded Investment FinancingReceivableModificationsPerformingRecordedInvestment	65800000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	78696000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	80904000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	5150000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	5288000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	289000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	83846000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	86192000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	289000	USD
CY2017Q4	hmst	Financing Receivable Modifications Performing Recorded Investment FinancingReceivableModificationsPerformingRecordedInvestment	69600000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	75799000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	2960000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	89833000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3455000	USD
CY2016	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	94412000	USD
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	3180000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	5093747000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	4529627000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	64358000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	5029389000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	5093747000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	39116000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	68930000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	4460697000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4529627000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	37171000	USD
CY2018Q4	hmst	Financing Receivable Recorded Investment Performing FinancingReceivableRecordedInvestmentPerforming	5082128000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	11619000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	5093747000	USD
CY2017Q4	hmst	Financing Receivable Recorded Investment Performing FinancingReceivableRecordedInvestmentPerforming	4514586000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	15041000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	4529627000	USD
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	172	loan
CY2018	hmst	Financing Receivable Modifications Recorded Investmentat Period End FinancingReceivableModificationsRecordedInvestmentatPeriodEnd	35067000	USD
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	161	loan
CY2017	hmst	Financing Receivable Modifications Recorded Investmentat Period End FinancingReceivableModificationsRecordedInvestmentatPeriodEnd	31765000	USD
CY2017	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2016	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	91	loan
CY2016	hmst	Financing Receivable Modifications Recorded Investmentat Period End FinancingReceivableModificationsRecordedInvestmentatPeriodEnd	18387000	USD
CY2016	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2018	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0	USD
CY2018	hmst	Trouble Debt Restructuring Re Default Number Of Days Past Due Consumer TroubleDebtRestructuringReDefaultNumberOfDaysPastDueConsumer	P60D
CY2018	hmst	Trouble Debt Restructuring Re Default Number Of Days Past Due Commercial TroubleDebtRestructuringReDefaultNumberOfDaysPastDueCommercial	P90D
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	24	loan
CY2018	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	4723000	USD
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	21	loan
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	4286000	USD
CY2018Q4	hmst	Real Estate Owned Valuation Allowance Netof Portion Attributableto Fha RealEstateOwnedValuationAllowanceNetofPortionAttributabletoFHA	0	USD
CY2017Q4	hmst	Real Estate Owned Valuation Allowance Netof Portion Attributableto Fha RealEstateOwnedValuationAllowanceNetofPortionAttributabletoFHA	0	USD
CY2018Q4	us-gaap	Other Real Estate OtherRealEstate	455000	USD
CY2017Q4	us-gaap	Other Real Estate OtherRealEstate	664000	USD
CY2017Q4	us-gaap	Other Real Estate OtherRealEstate	664000	USD
CY2016Q4	us-gaap	Other Real Estate OtherRealEstate	5243000	USD
CY2018	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	455000	USD
CY2017	us-gaap	Other Real Estate Additions OtherRealEstateAdditions	1113000	USD
CY2018	us-gaap	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	0	USD
CY2017	us-gaap	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	33000	USD
CY2018	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	664000	USD
CY2017	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	5659000	USD
CY2018Q4	us-gaap	Other Real Estate OtherRealEstate	455000	USD
CY2017Q4	us-gaap	Other Real Estate OtherRealEstate	664000	USD
CY2017Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	0	USD
CY2016Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	3095000	USD
CY2015Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	1764000	USD
CY2018	us-gaap	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	0	USD
CY2017	us-gaap	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	33000	USD
CY2016	us-gaap	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	1553000	USD
CY2018	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	0	USD
CY2017	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	3128000	USD
CY2016	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	222000	USD
CY2018Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	0	USD
CY2017Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	0	USD
CY2016Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	3095000	USD
CY2018	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	33000	USD
CY2017	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	-114000	USD
CY2016	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	469000	USD
CY2018	hmst	Real Estate Owned Valuation Allowance Provision Netof Portion Attributableto Fha RealEstateOwnedValuationAllowanceProvisionNetofPortionAttributabletoFHA	0	USD
CY2017	hmst	Real Estate Owned Valuation Allowance Provision Netof Portion Attributableto Fha RealEstateOwnedValuationAllowanceProvisionNetofPortionAttributabletoFHA	0	USD
CY2016	hmst	Real Estate Owned Valuation Allowance Provision Netof Portion Attributableto Fha RealEstateOwnedValuationAllowanceProvisionNetofPortionAttributabletoFHA	1332000	USD
CY2018	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	172000	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	416000	USD
CY2016	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	37000	USD
CY2018	hmst	Netcostincomefromoperationsandsaleofotherrealestateowned Netcostincomefromoperationsandsaleofotherrealestateowned	-139000	USD
CY2017	hmst	Netcostincomefromoperationsandsaleofotherrealestateowned Netcostincomefromoperationsandsaleofotherrealestateowned	-530000	USD
CY2016	hmst	Netcostincomefromoperationsandsaleofotherrealestateowned Netcostincomefromoperationsandsaleofotherrealestateowned	1764000	USD
CY2018Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	70692000	USD
CY2017Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	70657000	USD
CY2018Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	52596000	USD
CY2017Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	57402000	USD
CY2018Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	34552000	USD
CY2017Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	28898000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	157840000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	156957000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	63039000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	52303000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	94801000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	104654000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13900000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13500000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	11400000	USD
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	914154000	USD
CY2017Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	980902000	USD
CY2018Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	376137000	USD
CY2017Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	461349000	USD
CY2018Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	245795000	USD
CY2017Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	293858000	USD
CY2018Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1935516000	USD
CY2017Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1834154000	USD
CY2018Q4	us-gaap	Time Deposits TimeDeposits	1579806000	USD
CY2017Q4	us-gaap	Time Deposits TimeDeposits	1190689000	USD
CY2018Q4	us-gaap	Deposits Deposits	5051408000	USD
CY2017Q4	us-gaap	Deposits Deposits	4760952000	USD
CY2018Q4	hmst	Public Funds Included In Deposits PublicFundsIncludedInDeposits	191800000	USD
CY2017Q4	hmst	Public Funds Included In Deposits PublicFundsIncludedInDeposits	178400000	USD
CY2018	us-gaap	Interest Expense Negotiable Order Of Withdrawal Now Deposits InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits	1678000	USD
CY2017	us-gaap	Interest Expense Negotiable Order Of Withdrawal Now Deposits InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits	1964000	USD
CY2016	us-gaap	Interest Expense Negotiable Order Of Withdrawal Now Deposits InterestExpenseNegotiableOrderOfWithdrawalNOWDeposits	1950000	USD
CY2018	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	816000	USD
CY2017	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1007000	USD
CY2016	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1029000	USD
CY2018	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	17199000	USD
CY2017	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	8604000	USD
CY2016	us-gaap	Interest Expense Money Market Deposits InterestExpenseMoneyMarketDeposits	7398000	USD
CY2018	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	22302000	USD
CY2017	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	12337000	USD
CY2016	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	8632000	USD
CY2018	us-gaap	Interest Expense Deposits InterestExpenseDeposits	41995000	USD
CY2017	us-gaap	Interest Expense Deposits InterestExpenseDeposits	23912000	USD
CY2016	us-gaap	Interest Expense Deposits InterestExpenseDeposits	19009000	USD
CY2018Q4	hmst	Time Deposits Weighted Average Interest Rate TimeDepositsWeightedAverageInterestRate	0.0187
CY2017Q4	hmst	Time Deposits Weighted Average Interest Rate TimeDepositsWeightedAverageInterestRate	0.0112
CY2016Q4	hmst	Time Deposits Weighted Average Interest Rate TimeDepositsWeightedAverageInterestRate	0.0096
CY2018Q4	us-gaap	Time Deposit Maturities Next Rolling Twelve Months TimeDepositMaturitiesNextRollingTwelveMonths	1272267000	USD
CY2018Q4	us-gaap	Time Deposit Maturities Rolling Year Two TimeDepositMaturitiesRollingYearTwo	248031000	USD
CY2018Q4	us-gaap	Time Deposit Maturities Rolling Year Three TimeDepositMaturitiesRollingYearThree	27986000	USD
CY2018Q4	us-gaap	Time Deposit Maturities Rolling Year Four TimeDepositMaturitiesRollingYearFour	16756000	USD
CY2018Q4	us-gaap	Time Deposit Maturities Rolling Year Five TimeDepositMaturitiesRollingYearFive	14764000	USD
CY2018Q4	us-gaap	Time Deposit Maturities After Rolling Year Five TimeDepositMaturitiesAfterRollingYearFive	2000	USD
CY2018Q4	us-gaap	Time Deposits TimeDeposits	1579806000	USD
CY2018Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	85300000	USD
CY2017Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	88800000	USD
CY2018Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	786100000	USD
CY2017Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	345500000	USD
CY2018Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	932600000	USD
CY2017Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	979200000	USD
CY2018Q4	hmst	Federal Home Loan Bank Available Lineof Credit Percentageof Assets FederalHomeLoanBankAvailableLineofCreditPercentageofAssets	0.350
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	927000000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate	0.0261
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	0	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate	0
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate	0	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Three To Four Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate	0
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Three To Four Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate	0	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Four To Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate	0
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	5590000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Average Interest Rate After Five Years From Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate	0.0531
CY2018Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	932590000	USD
CY2018Q4	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Interest Rate At Period End FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateAtPeriodEnd	0.0263
CY2018Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	45500000	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	46600000	USD
CY2018	hmst	Fhl Bstockimpairment FHLBstockimpairment	0	USD
CY2018Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	19000000.0	USD
CY2017Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	0	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	0	USD
CY2018Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	5698157000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	28083000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	17004000	USD
CY2018Q4	hmst	Derivative Asset Fair Value Amount Offset Against Other Derivatives DerivativeAssetFairValueAmountOffsetAgainstOtherDerivatives	-8329000	USD
CY2018Q4	hmst	Derivative Liability Fair Value Amount Offset Against Other Derivatives DerivativeLiabilityFairValueAmountOffsetAgainstOtherDerivatives	-12517000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	19754000	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	4487000	USD
CY2017Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	7436391000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	26432000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	25225000	USD
CY2017Q4	hmst	Derivative Asset Fair Value Amount Offset Against Other Derivatives DerivativeAssetFairValueAmountOffsetAgainstOtherDerivatives	-6646000	USD
CY2017Q4	hmst	Derivative Liability Fair Value Amount Offset Against Other Derivatives DerivativeLiabilityFairValueAmountOffsetAgainstOtherDerivatives	-23505000	USD
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	19786000	USD
CY2017Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1720000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	28083000	USD
CY2018Q4	hmst	Derivative Asset Fair Value Amount Offset Against Other Derivatives DerivativeAssetFairValueAmountOffsetAgainstOtherDerivatives	-8329000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	19754000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Of Collateral DerivativeAssetFairValueOfCollateral	0	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	19754000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	17004000	USD
CY2018Q4	hmst	Derivative Liability Fair Value Amount Offset Against Other Derivatives DerivativeLiabilityFairValueAmountOffsetAgainstOtherDerivatives	-12517000	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	4487000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	3223000	USD
CY2018Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	1264000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	26432000	USD
CY2017Q4	hmst	Derivative Asset Fair Value Amount Offset Against Other Derivatives DerivativeAssetFairValueAmountOffsetAgainstOtherDerivatives	-6646000	USD
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	19786000	USD
CY2017Q4	us-gaap	Derivative Asset Fair Value Of Collateral DerivativeAssetFairValueOfCollateral	0	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	19786000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	25225000	USD
CY2017Q4	hmst	Derivative Liability Fair Value Amount Offset Against Other Derivatives DerivativeLiabilityFairValueAmountOffsetAgainstOtherDerivatives	-23505000	USD
CY2017Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1720000	USD
CY2017Q4	us-gaap	Derivative Liability Fair Value Of Collateral DerivativeLiabilityFairValueOfCollateral	1213000	USD
CY2017Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	507000	USD
CY2018Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	347007000	USD
CY2017Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	610902000	USD
CY2018	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	6891959000	USD
CY2017	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	8204573000	USD
CY2016	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	9255065000	USD
CY2018	hmst	Net Gains Losses On Mortgage Loan Origination And Sales Activities NetGainsLossesOnMortgageLoanOriginationAndSalesActivities	186249000	USD
CY2017	hmst	Net Gains Losses On Mortgage Loan Origination And Sales Activities NetGainsLossesOnMortgageLoanOriginationAndSalesActivities	255876000	USD
CY2016	hmst	Net Gains Losses On Mortgage Loan Origination And Sales Activities NetGainsLossesOnMortgageLoanOriginationAndSalesActivities	307313000	USD
CY2018Q4	us-gaap	Continuing Involvement With Transferred Financial Assets Principal Amount Outstanding ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding	21694212000	USD
CY2017Q4	us-gaap	Continuing Involvement With Transferred Financial Assets Principal Amount Outstanding ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding	24022343000	USD
CY2018Q4	hmst	Servicing Advances ServicingAdvances	2500000	USD
CY2017Q4	hmst	Servicing Advances ServicingAdvances	5300000	USD
CY2018	hmst	Servicing Fees And Other ServicingFeesAndOther	68938000	USD
CY2017	hmst	Servicing Fees And Other ServicingFeesAndOther	66192000	USD
CY2016	hmst	Servicing Fees And Other ServicingFeesAndOther	53654000	USD
CY2018	hmst	Changes In Fair Value Of Mortgage Servicing Rights Due To Modeled Amortization ChangesInFairValueOfMortgageServicingRightsDueToModeledAmortization	34705000	USD
CY2017	hmst	Changes In Fair Value Of Mortgage Servicing Rights Due To Modeled Amortization ChangesInFairValueOfMortgageServicingRightsDueToModeledAmortization	35451000	USD
CY2016	hmst	Changes In Fair Value Of Mortgage Servicing Rights Due To Modeled Amortization ChangesInFairValueOfMortgageServicingRightsDueToModeledAmortization	33305000	USD
CY2018	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	4383000	USD
CY2017	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	3932000	USD
CY2016	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	2635000	USD
CY2018	hmst	Net Servicing Income NetServicingIncome	29850000	USD
CY2017	hmst	Net Servicing Income NetServicingIncome	26809000	USD
CY2016	hmst	Net Servicing Income NetServicingIncome	17714000	USD
CY2018	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	39348000	USD
CY2017	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-1157000	USD
CY2016	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	20025000	USD
CY2018	hmst	Mortgage Servicing Rights Risk Management MortgageServicingRightsRiskManagement	-1126000	USD
CY2017	hmst	Mortgage Servicing Rights Risk Management MortgageServicingRightsRiskManagement	8575000	USD
CY2016	hmst	Mortgage Servicing Rights Risk Management MortgageServicingRightsRiskManagement	15345000	USD
CY2018	hmst	Servicing Fees Net1 ServicingFeesNet1	28724000	USD
CY2017	hmst	Servicing Fees Net1 ServicingFeesNet1	35384000	USD
CY2016	hmst	Servicing Fees Net1 ServicingFeesNet1	33059000	USD
CY2018Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	252168000	USD
CY2018	us-gaap	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Weighted Average Life1 ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageLife1	P6Y3M3D
CY2018Q4	hmst	Fair Value Input Prepayment Rate FairValueInputPrepaymentRate	0.1226
CY2018Q4	hmst	Impact On Fair Value Of Twenty Five Basis Points Decrease ImpactOnFairValueOfTwentyFiveBasisPointsDecrease	14029000	USD
CY2018Q4	hmst	Impact On Fair Value Of Fifty Basis Points Decrease ImpactOnFairValueOfFiftyBasisPointsDecrease	29498000	USD
CY2018Q4	hmst	Fair Value Input Discount Rate FairValueInputDiscountRate	0.1000
CY2018Q4	hmst	Impact On Fair Value Of Hundred Basis Points Increase ImpactOnFairValueOfHundredBasisPointsIncrease	8728000	USD
CY2018Q4	hmst	Impact On Fair Value Of Two Hundred Basis Points Increase ImpactOnFairValueOfTwoHundredBasisPointsIncrease	16850000	USD
CY2017Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	26093000	USD
CY2016Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	19747000	USD
CY2015Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	14651000	USD
CY2018	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	6268000	USD
CY2017	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	9915000	USD
CY2016	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	7731000	USD
CY2018	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	4033000	USD
CY2017	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	3569000	USD
CY2016	us-gaap	Servicing Asset At Amortized Value Amortization1 ServicingAssetAtAmortizedValueAmortization1	2635000	USD
CY2018Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	28328000	USD
CY2017Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	26093000	USD
CY2016Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	19747000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3946000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3877000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3697000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	3402000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	3158000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	10248000	USD
CY2018Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	28328000	USD
CY2018Q4	hmst	Credit Of Unfunded Commitments CreditOfUnfundedCommitments	33800000	USD
CY2017Q4	hmst	Credit Of Unfunded Commitments CreditOfUnfundedCommitments	56900000	USD
CY2018Q4	hmst	Allowance For Unfunded Commitments AllowanceForUnfundedCommitments	1400000	USD
CY2017Q4	hmst	Allowance For Unfunded Commitments AllowanceForUnfundedCommitments	1300000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	27700000	USD
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CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	22700000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	22770000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	20671000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	18825000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	16418000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	13274000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	40717000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	132675000	USD
CY2018Q4	us-gaap	Loss Contingency Pending Claims Number LossContingencyPendingClaimsNumber	0	claim
CY2018	hmst	Tax Cuts And Jobs Act Of2017 Deferred Income Tax Expense Benefit TaxCutsAndJobsActOf2017DeferredIncomeTaxExpenseBenefit	-4900000	USD
CY2017	hmst	Tax Cuts And Jobs Act Of2017 Deferred Income Tax Expense Benefit TaxCutsAndJobsActOf2017DeferredIncomeTaxExpenseBenefit	-23300000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-7990000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-649000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1154000	USD
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CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	62000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1595000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	14215000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	17637000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	27538000	USD
CY2018	hmst	Tax Cuts And Jobs Act Of2017 Deferred Income Tax Expense Benefit TaxCutsAndJobsActOf2017DeferredIncomeTaxExpenseBenefit	-4899000	USD
CY2017	hmst	Tax Cuts And Jobs Act Of2017 Deferred Income Tax Expense Benefit TaxCutsAndJobsActOf2017DeferredIncomeTaxExpenseBenefit	-23325000	USD
CY2016	hmst	Tax Cuts And Jobs Act Of2017 Deferred Income Tax Expense Benefit TaxCutsAndJobsActOf2017DeferredIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1489000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	528000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3058000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	2486000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	2990000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	1589000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5838000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2757000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32626000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	9632000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	23166000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	31772000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1153000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1207000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2073000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1626000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	2855000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	2177000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2922000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2041000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1389000	USD
CY2018	hmst	Lowincomehousingtaxcreditpartnerships Lowincomehousingtaxcreditpartnerships	2648000	USD
CY2017	hmst	Lowincomehousingtaxcreditpartnerships Lowincomehousingtaxcreditpartnerships	1716000	USD
CY2016	hmst	Lowincomehousingtaxcreditpartnerships Lowincomehousingtaxcreditpartnerships	1018000	USD
CY2018	hmst	Changeinstatetaxrate Changeinstatetaxrate	220000	USD
CY2017	hmst	Changeinstatetaxrate Changeinstatetaxrate	-714000	USD
CY2016	hmst	Changeinstatetaxrate Changeinstatetaxrate	811000	USD
CY2018	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	1238000	USD
CY2017	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-278000	USD
CY2016	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	687000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-4899000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-23325000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	hmst	Effective Income Tax Reconciliation Uncertain Tax Positions Amount EffectiveIncomeTaxReconciliationUncertainTaxPositionsAmount	-42000	USD
CY2017	hmst	Effective Income Tax Reconciliation Uncertain Tax Positions Amount EffectiveIncomeTaxReconciliationUncertainTaxPositionsAmount	76000	USD
CY2016	hmst	Effective Income Tax Reconciliation Uncertain Tax Positions Amount EffectiveIncomeTaxReconciliationUncertainTaxPositionsAmount	0	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	436000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	291000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-169000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5838000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2757000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32626000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	12959000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	11844000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	2407000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	3914000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	2319000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	4747000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	37000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	145000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	2386000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	2336000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	4498000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	2286000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1399000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1695000	USD
CY2018Q4	hmst	Deferred Tax Assets Stock Options DeferredTaxAssetsStockOptions	1247000	USD
CY2017Q4	hmst	Deferred Tax Assets Stock Options DeferredTaxAssetsStockOptions	993000	USD
CY2018Q4	hmst	Deferred Tax Assets Loan Valuation DeferredTaxAssetsLoanValuation	1187000	USD
CY2017Q4	hmst	Deferred Tax Assets Loan Valuation DeferredTaxAssetsLoanValuation	1857000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1422000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1158000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	29861000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	30975000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	57452000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	58195000	USD
CY2018Q4	hmst	Deferred Tax Liabilities Federal Home Loan Bank Dividends DeferredTaxLiabilitiesFederalHomeLoanBankDividends	272000	USD
CY2017Q4	hmst	Deferred Tax Liabilities Federal Home Loan Bank Dividends DeferredTaxLiabilitiesFederalHomeLoanBankDividends	316000	USD
CY2018Q4	hmst	Deferred Tax Liabilities Deferred Loan Feesand Costs DeferredTaxLiabilitiesDeferredLoanFeesandCosts	10718000	USD
CY2017Q4	hmst	Deferred Tax Liabilities Deferred Loan Feesand Costs DeferredTaxLiabilitiesDeferredLoanFeesandCosts	3828000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6997000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5267000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1133000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1371000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	25000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	141000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	76597000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	69118000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	46736000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	38143000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	828000	USD
CY2018Q4	hmst	Tax Basis In Unrecorded Bad Debts With No Liability Recorded TaxBasisInUnrecordedBadDebtsWithNoLiabilityRecorded	12700000	USD
CY2017Q4	hmst	Unrecognized Tax Benefits Including Interest On Income Taxes Expense UnrecognizedTaxBenefitsIncludingInterestOnIncomeTaxesExpense	514000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	19000	USD
CY2018Q4	hmst	Unrecognized Tax Benefits Including Interest On Income Taxes Expense UnrecognizedTaxBenefitsIncludingInterestOnIncomeTaxesExpense	0	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	495000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	419000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	419000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	76000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	495000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	495000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	419000	USD
CY2018	hmst	Revenue Recognition Percentage Of Revenue In Scope With Accounting Standard Update201409 RevenueRecognitionPercentageOfRevenueInScopeWithAccountingStandardUpdate201409	0.021
CY2018	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	7500000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	8500000	USD
CY2016	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	7700000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3000000.0	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2500000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1800000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	900000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	267547	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	12.01
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y2M12D
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	4533000	USD
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3622	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	18.90
CY2018	hmst	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageRemainingContractualTerm	P0D
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	33000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	263925	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	11.91
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y2M12D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2459000	USD
CY2018Q4	hmst	Share Based Compensation Arrangement By Share Based Payment Exercisableand Expectedtobe Exercisable ShareBasedCompensationArrangementByShareBasedPaymentExercisableandExpectedtobeExercisable	263925	shares
CY2018Q4	hmst	Hmst Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable And Expected To Be Exercisable Weighted Average Exercise Price Hmst_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAndExpectedToBeExercisableWeightedAverageExercisePrice	11.91
CY2018	hmst	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable And Expected To Be Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableAndExpectedToBeExercisableWeightedAverageRemainingContractualTerm	P3Y2M12D
CY2018Q4	hmst	Share Based Compensation Arrangement By Share Based Payment Options Exercisable And Expected To Be Exercisable Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentOptionsExercisableAndExpectedToBeExercisableIntrinsicValue	2459000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	263925	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	11.91
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y2M12D
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2459000	USD
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3622	shares
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	80000	USD
CY2018Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	0	USD
CY2018	hmst	Hmst Percentage Of Share Price Exceeds Grant Date Fair Value In Condition One Hmst_PercentageOfSharePriceExceedsGrantDateFairValueInConditionOne	0.25
CY2018	hmst	Hmst Percentage Of Share Price Exceeds Grant Date Fair Value In Condition Two Hmst_PercentageOfSharePriceExceedsGrantDateFairValueInConditionTwo	0.40
CY2018	hmst	Hmst Percentage Of Share Price Exceeds Grant Date Fair Value In Condition Three Hmst_PercentageOfSharePriceExceedsGrantDateFairValueInConditionThree	0.50
CY2018	hmst	Fair Value Measurement Transfers Between With Levels Of Hierarchy For Assets And Liabilities Held FairValueMeasurementTransfersBetweenWithLevelsOfHierarchyForAssetsAndLiabilitiesHeld	0	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	40027000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	68946000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	58151000	USD
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26970916	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26864657	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	24615990	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	197219	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	227362	shares
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	227693	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27168135	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27092019	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	24843683	shares
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.48
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.57
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.36
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.47
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.54
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.34
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3224	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	202479000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	236959000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	390573000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	45865000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5838000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	40027000	USD
CY2018Q4	us-gaap	Assets Assets	7042221000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	194438000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	750000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	312154000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	439653000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	66189000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2757000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	68946000	USD
CY2017Q4	us-gaap	Assets Assets	6742041000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	180049000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4100000	USD
CY2016	us-gaap	Noninterest Income NoninterestIncome	359150000	USD
CY2016	us-gaap	Noninterest Expense NoninterestExpense	444322000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	90777000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32626000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	58151000	USD
CY2016Q4	us-gaap	Assets Assets	6243700000	USD
CY2018	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-8132000	USD
CY2017	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	3607000	USD
CY2016	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-6313000	USD
CY2018	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	185000	USD
CY2017	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	317000	USD
CY2016	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	1650000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-8317000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3290000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-7963000	USD
CY2018Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	72166000	USD
CY2018Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	69673000	USD
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	67189000	USD
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	61674000	USD
CY2017Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	63686000	USD
CY2017Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	61981000	USD
CY2017Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	56742000	USD
CY2017Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	55274000	USD
CY2018Q4	us-gaap	Interest Expense InterestExpense	20794000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	18029000	USD
CY2018Q2	us-gaap	Interest Expense InterestExpense	16186000	USD
CY2018Q1	us-gaap	Interest Expense InterestExpense	13214000	USD
CY2017Q4	us-gaap	Interest Expense InterestExpense	12607000	USD
CY2017Q3	us-gaap	Interest Expense InterestExpense	11141000	USD
CY2017Q2	us-gaap	Interest Expense InterestExpense	9874000	USD
CY2017Q1	us-gaap	Interest Expense InterestExpense	9623000	USD
CY2018Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	51372000	USD
CY2018Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	51644000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	51003000	USD
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	48460000	USD
CY2017Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	51079000	USD
CY2017Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	50840000	USD
CY2017Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	46868000	USD
CY2017Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	45651000	USD
CY2018Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	500000	USD
CY2018Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	750000	USD
CY2018Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1000000	USD
CY2018Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	750000	USD
CY2017Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2017Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	250000	USD
CY2017Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	500000	USD
CY2017Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	USD
CY2018Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	50872000	USD
CY2018Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	50894000	USD
CY2018Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	50003000	USD
CY2018Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	47710000	USD
CY2017Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	51079000	USD
CY2017Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	50590000	USD
CY2017Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	46368000	USD
CY2017Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	45651000	USD
CY2018Q4	us-gaap	Noninterest Income NoninterestIncome	48631000	USD
CY2018Q3	us-gaap	Noninterest Income NoninterestIncome	58108000	USD
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	69389000	USD
CY2018Q1	us-gaap	Noninterest Income NoninterestIncome	60831000	USD
CY2017Q4	us-gaap	Noninterest Income NoninterestIncome	72801000	USD
CY2017Q3	us-gaap	Noninterest Income NoninterestIncome	83884000	USD
CY2017Q2	us-gaap	Noninterest Income NoninterestIncome	81008000	USD
CY2017Q1	us-gaap	Noninterest Income NoninterestIncome	74461000	USD
CY2018Q4	us-gaap	Noninterest Expense NoninterestExpense	84644000	USD
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	94595000	USD
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	110565000	USD
CY2018Q1	us-gaap	Noninterest Expense NoninterestExpense	100769000	USD
CY2017Q4	us-gaap	Noninterest Expense NoninterestExpense	106838000	USD
CY2017Q3	us-gaap	Noninterest Expense NoninterestExpense	114697000	USD
CY2017Q2	us-gaap	Noninterest Expense NoninterestExpense	111244000	USD
CY2017Q1	us-gaap	Noninterest Expense NoninterestExpense	106874000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14859000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	14407000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8827000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7772000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	17042000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	19777000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	16132000	USD
CY2017Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	13238000	USD
CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-368000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2572000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1728000	USD
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1906000	USD
CY2017Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-17873000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5938000	USD
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4923000	USD
CY2017Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4255000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	15227000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	11835000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	7099000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	5866000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	34915000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	13839000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	11209000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	8983000	USD
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.26
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.41
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.33
CY2018	us-gaap	Restructuring Charges RestructuringCharges	6200000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	3700000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	3720000	USD
CY2016Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
CY2017	us-gaap	Payments For Restructuring PaymentsForRestructuring	2334000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	1386000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	6218000	USD
CY2018	us-gaap	Payments For Restructuring PaymentsForRestructuring	6000000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	1604000	USD

Files In Submission

Name	View Source	Status
0001518715-19-000056-index-headers.html	Edgar Link	pending
0001518715-19-000056-index.html	Edgar Link	pending
0001518715-19-000056.txt	Edgar Link	pending
0001518715-19-000056-xbrl.zip	Edgar Link	pending
a1027annualincentivepl.htm	Edgar Link	pending
a231consentofindepende.htm	Edgar Link	pending
exhibit102amendedandre.htm	Edgar Link	pending
exhibit103rsutemplate2.htm	Edgar Link	pending
exhibit104psutemplate2.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
hmst-20181231.xsd	Edgar Link	pending
hmst-20181231x10k.htm	Edgar Link	pending
hmst-20181231x10k_htm.xml	Edgar Link	completed
hmst-20181231_cal.xml	Edgar Link	unprocessable
hmst-20181231_def.xml	Edgar Link	unprocessable
hmst-20181231_lab.xml	Edgar Link	unprocessable
hmst-20181231_pre.xml	Edgar Link	unprocessable
hmst-ex31110kq42018.htm	Edgar Link	pending
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$HMST
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2017 Q4 Form 10-K Financial Statement

#000151871519000056 Filed on March 06, 2019

Income Statement

Balance Sheet

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$HMST HomeStreet Inc Stock $hmst

2017 Q4 Form 10-K Financial Statement

#000151871519000056 Filed on March 06, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HMST
HomeStreet Inc Stock $hmst