$APAM
Artisan Partners Asset Management Inc. Stock $apam

$apam Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000151730219000012 Filed on February 20, 2019

Income Statement

Concept	2018 Q4	2018 Q3	2018 Q2
Revenue	$191.5M	$212.8M	$212.3M
YoY Change	-9.1%	4.02%	8.16%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$127.3M	$131.0M	$133.4M
YoY Change	-1.7%	5.73%	2.77%
% of Gross Profit
Research & Development		$9.556M	$8.966M
YoY Change		16.82%	4.24%
% of Gross Profit
Depreciation & Amortization	$1.400M	$1.800M	$1.200M
YoY Change	0.0%	28.57%	0.0%
% of Gross Profit
Operating Expenses	$127.3M	$131.0M	$133.4M
YoY Change	-1.7%	5.67%	2.81%
Operating Profit	$64.24M	$81.84M	$78.88M
YoY Change	-20.93%	1.5%	18.61%
Interest Expense	-$6.900M	$2.823M	$2.846M
YoY Change	-1480.0%	-1.64%	-2.53%
% of Operating Profit	-10.74%	3.45%	3.61%
Other Income/Expense, Net	$0.00	-$948.0K	$755.0K
YoY Change	-100.0%	47.66%	-127.67%
Pretax Income	$57.30M	$80.89M	$79.63M
YoY Change	-84.61%	1.13%	24.87%
Income Tax	$9.200M	$14.17M	$11.99M
% Of Pretax Income	16.06%	17.52%	15.05%
Net Earnings	$32.51M	$42.52M	$42.01M
YoY Change	-218.25%	38.65%	57.73%
Net Earnings / Revenue	16.97%	19.98%	19.79%
Basic Earnings Per Share	$0.57	$0.77	$0.72
Diluted Earnings Per Share	$655.2K	$860.3K	$841.7K
COMMON SHARES
Basic Shares Outstanding		49.40M shares	49.04M shares
Diluted Shares Outstanding		0.000 shares	0.000 shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$174.9M	$227.0M	$237.0M
YoY Change	9.86%	2.39%	9.02%
Cash & Equivalents	$160.5M	$211.4M	$190.4M
Short-Term Investments
Other Short-Term Assets	$9.900M	$13.30M	$14.60M
YoY Change	10.0%	-8.28%	-7.59%
Inventory
Prepaid Expenses
Receivables	$73.30M	$92.60M	$96.60M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$258.1M	$332.9M	$348.2M
YoY Change	-1.38%	7.11%	15.6%
LONG-TERM ASSETS
Property, Plant & Equipment	$29.14M	$25.56M	$20.80M
YoY Change	38.59%	24.64%	3.46%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$12.25M	$11.90M	$142.0M
YoY Change		-74.84%	435.85%
Other Assets	$429.8M	$434.6M	$439.7M
YoY Change	0.0%	-44.45%	-44.18%
Total Long-Term Assets	$546.9M	$543.4M	$602.5M
YoY Change	-4.96%	-36.08%	-27.77%
TOTAL ASSETS
Total Short-Term Assets	$258.1M	$332.9M	$348.2M
Total Long-Term Assets	$546.9M	$543.4M	$602.5M
Total Assets	$805.0M	$876.3M	$950.7M
YoY Change	-3.84%	-24.52%	-16.27%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$21.50M	$36.40M	$37.00M
YoY Change	-13.31%	30.94%	4.82%
Accrued Expenses	$12.70M	$82.50M	$76.00M
YoY Change	337.93%	5.36%	10.14%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$403.6M	$487.9M	$490.5M
YoY Change	-2.3%	-36.86%	-36.64%
LONG-TERM LIABILITIES
Long-Term Debt	$199.3M	$199.3M	$199.2M
YoY Change	0.1%	0.2%	-0.2%
Other Long-Term Liabilities	$27.40M	$21.70M	$50.80M
YoY Change	-49.45%	25.43%	636.23%
Total Long-Term Liabilities	$226.7M	$221.0M	$250.0M
YoY Change	-10.5%	2.22%	21.07%
TOTAL LIABILITIES
Total Short-Term Liabilities	$403.6M	$487.9M	$490.5M
Total Long-Term Liabilities	$226.7M	$221.0M	$250.0M
Total Liabilities	$630.2M	$708.7M	$740.5M
YoY Change	-5.45%	-28.33%	-24.48%
SHAREHOLDERS EQUITY
Retained Earnings	$38.62M	$38.68M	$28.69M
YoY Change	-201.97%	94.36%	54.8%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$135.0M	$128.4M	$110.8M
YoY Change
Total Liabilities & Shareholders Equity	$805.0M	$876.3M	$950.7M
YoY Change	-3.84%	-24.52%	-16.27%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2018 Q2
OPERATING ACTIVITIES
Net Income	$32.51M	$42.52M	$42.01M
YoY Change	-218.25%	38.65%	57.73%
Depreciation, Depletion And Amortization	$1.400M	$1.800M	$1.200M
YoY Change	0.0%	28.57%	0.0%
Cash From Operating Activities	$5.100M	$47.50M	$73.70M
YoY Change	-111.94%	-34.21%	-4.9%
INVESTING ACTIVITIES
Capital Expenditures	-$4.900M	-$6.100M	-$2.000M
YoY Change	226.67%	205.0%	150.0%
Acquisitions
YoY Change
Other Investing Activities	-$200.0K	-$300.0K	$0.00
YoY Change		-85.0%	-100.0%
Cash From Investing Activities	-$5.200M	-$6.300M	-$2.000M
YoY Change	246.67%	57.5%	-47.37%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-51.90M	-51.20M	-80.40M
YoY Change	183.61%	-19.87%	2.42%
NET CHANGE
Cash From Operating Activities	5.100M	47.50M	73.70M
Cash From Investing Activities	-5.200M	-6.300M	-2.000M
Cash From Financing Activities	-51.90M	-51.20M	-80.40M
Net Change In Cash	-52.00M	-10.00M	-8.700M
YoY Change	-16.8%	-332.56%	81.25%
FREE CASH FLOW
Cash From Operating Activities	$5.100M	$47.50M	$73.70M
Capital Expenditures	-$4.900M	-$6.100M	-$2.000M
Free Cash Flow	$10.00M	$53.60M	$75.70M
YoY Change	-124.27%	-27.76%	-3.32%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
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CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0001517302
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2018	dei	Document Type DocumentType	10-K
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CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1073000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	383000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-99000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1002000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	1277000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2130000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1002000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1660000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2229000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	253188000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	152397000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	170772000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	90816000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	99922000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	99015000	USD
CY2018	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	4827000	USD
CY2017	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	2100000	USD
CY2016	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	0	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	157545000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	50375000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	71757000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	116551000	USD
CY2015Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	0	USD
CY2016	us-gaap	Profit Loss ProfitLoss	173001000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-2130000	USD
CY2016	apam	Other Comprehensive Income Availablefor Sale Securitiesnetoftaxgrossofchangeinownership OtherComprehensiveIncomeAvailableforSaleSecuritiesnetoftaxgrossofchangeinownership	-94000	USD
CY2016	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Additional Interest Issued To Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesAdditionalInterestIssuedToParent	5000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	71996000	USD
CY2016	apam	Adjustmentsto Paid In Capital Establishmentof Deferred Tax Assets Net Of Amounts Payable Under Tax Receivable Agreements AdjustmentstoPaidInCapitalEstablishmentofDeferredTaxAssetsNetOfAmountsPayableUnderTaxReceivableAgreements	8439000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-22000	USD
CY2016	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2016	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	762000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	133876000	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	115384000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	117714000	USD
CY2016Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	0	USD
CY2017	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	148637000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	0	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2017	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	2100000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	1277000	USD
CY2017	apam	Other Comprehensive Income Availablefor Sale Securitiesnetoftaxgrossofchangeinownership OtherComprehensiveIncomeAvailableforSaleSecuritiesnetoftaxgrossofchangeinownership	388000	USD
CY2017	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Additional Interest Issued To Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesAdditionalInterestIssuedToParent	5000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	62892000	USD
CY2017	apam	Adjustmentsto Paid In Capital Establishmentof Deferred Tax Assets Net Of Amounts Payable Under Tax Receivable Agreements AdjustmentstoPaidInCapitalEstablishmentofDeferredTaxAssetsNetOfAmountsPayableUnderTaxReceivableAgreements	25922000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	162036000	USD
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1477000	USD
CY2017	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	USD
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	162494000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	60481000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	115804000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	131021000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	108065000	USD
CY2017Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	62581000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	108065000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	249363000	USD
CY2018	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	4827000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-1002000	USD
CY2018	apam	Other Comprehensive Income Availablefor Sale Securitiesnetoftaxgrossofchangeinownership OtherComprehensiveIncomeAvailableforSaleSecuritiesnetoftaxgrossofchangeinownership	98000	USD
CY2018	us-gaap	Consolidation Less Than Wholly Owned Subsidiary Parent Ownership Interest Changes Additional Interest Issued To Parent ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesAdditionalInterestIssuedToParent	0	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	53554000	USD
CY2018	apam	Adjustmentsto Paid In Capital Establishmentof Deferred Tax Assets Net Of Amounts Payable Under Tax Receivable Agreements AdjustmentstoPaidInCapitalEstablishmentofDeferredTaxAssetsNetOfAmountsPayableUnderTaxReceivableAgreements	4376000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	21289000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation Forfeited StockIssuedDuringPeriodValueShareBasedCompensationForfeited	0	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2018	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2564000	USD
CY2018	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	USD
CY2018	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	USD
CY2018	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	0	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	21478000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	46572000	USD
CY2018	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	79631000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	103434000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	167780000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	140487000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	34349000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	254190000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	150737000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	173001000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5668000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5297000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5272000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	24863000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	395416000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	33960000	USD
CY2018	us-gaap	Gain Loss On Investments GainLossOnInvestments	688000	USD
CY2017	us-gaap	Gain Loss On Investments GainLossOnInvestments	519000	USD
CY2016	us-gaap	Gain Loss On Investments GainLossOnInvestments	1073000	USD
CY2018	apam	Net Gain Loss On The Tax Receivable Agreements NetGainLossOnTheTaxReceivableAgreements	-251000	USD
CY2017	apam	Net Gain Loss On The Tax Receivable Agreements NetGainLossOnTheTaxReceivableAgreements	-290919000	USD
CY2016	apam	Net Gain Loss On The Tax Receivable Agreements NetGainLossOnTheTaxReceivableAgreements	-650000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-18000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-69000	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-108000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	457000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	452000	USD
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	448000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	53554000	USD
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	62892000	USD
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	71996000	USD
CY2018	apam	Netinvestmentgainlossofconsolidatedinvestmentproducts Netinvestmentgainlossofconsolidatedinvestmentproducts	5721000	USD
CY2017	apam	Netinvestmentgainlossofconsolidatedinvestmentproducts Netinvestmentgainlossofconsolidatedinvestmentproducts	4241000	USD
CY2016	apam	Netinvestmentgainlossofconsolidatedinvestmentproducts Netinvestmentgainlossofconsolidatedinvestmentproducts	0	USD
CY2018	apam	Purchaseofinvestmentsbyconsolidatedinvestmentproducts Purchaseofinvestmentsbyconsolidatedinvestmentproducts	643548000	USD
CY2017	apam	Purchaseofinvestmentsbyconsolidatedinvestmentproducts Purchaseofinvestmentsbyconsolidatedinvestmentproducts	252047000	USD
CY2016	apam	Purchaseofinvestmentsbyconsolidatedinvestmentproducts Purchaseofinvestmentsbyconsolidatedinvestmentproducts	0	USD
CY2018	apam	Proceedsfromsaleofinvestmentsbyconsolidatedinvestmentproducts Proceedsfromsaleofinvestmentsbyconsolidatedinvestmentproducts	611117000	USD
CY2017	apam	Proceedsfromsaleofinvestmentsbyconsolidatedinvestmentproducts Proceedsfromsaleofinvestmentsbyconsolidatedinvestmentproducts	190353000	USD
CY2016	apam	Proceedsfromsaleofinvestmentsbyconsolidatedinvestmentproducts Proceedsfromsaleofinvestmentsbyconsolidatedinvestmentproducts	0	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-9002000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	16955000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-318000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2275000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1629000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4898000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	10027000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-9202000	USD
CY2017	us-gaap	Increase Decrease In Deferred Compensation IncreaseDecreaseInDeferredCompensation	-506000	USD
CY2016	us-gaap	Increase Decrease In Deferred Compensation IncreaseDecreaseInDeferredCompensation	-5096000	USD
CY2018	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	4086000	USD
CY2017	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	2391000	USD
CY2016	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	494000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-3520000	USD
CY2018	us-gaap	Increase Decrease In Deferred Compensation IncreaseDecreaseInDeferredCompensation	0	USD
CY2018	apam	Netchangeinoperatingassetsandliabilitiesofconsolidatedinvestmentproducts Netchangeinoperatingassetsandliabilitiesofconsolidatedinvestmentproducts	-12823000	USD
CY2017	apam	Netchangeinoperatingassetsandliabilitiesofconsolidatedinvestmentproducts Netchangeinoperatingassetsandliabilitiesofconsolidatedinvestmentproducts	8893000	USD
CY2016	apam	Netchangeinoperatingassetsandliabilitiesofconsolidatedinvestmentproducts Netchangeinoperatingassetsandliabilitiesofconsolidatedinvestmentproducts	0	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	333322000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	225954000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	270360000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2834000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1578000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2933000	USD
CY2018	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	11007000	USD
CY2017	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	4257000	USD
CY2016	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	4343000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	0	USD
CY2017	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	6382000	USD
CY2016	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	8961000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	500000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	5250000	USD
CY2016	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	4014000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-14341000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4703000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2329000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	103434000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	115804000	USD
CY2016	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	133876000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	167780000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	131021000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	115384000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	512000	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	60000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2018	us-gaap	Repayments Of Debt RepaymentsOfDebt	0	USD
CY2017	us-gaap	Repayments Of Debt RepaymentsOfDebt	60000000	USD
CY2016	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	USD
CY2018	apam	Paymentsto Purchase Preferred Stockand Subsidiary Equity PaymentstoPurchasePreferredStockandSubsidiaryEquity	21478000	USD
CY2016	us-gaap	Repayments Of Debt RepaymentsOfDebt	0	USD
CY2018	apam	Tax Receivable Agreement Payments TaxReceivableAgreementPayments	36111000	USD
CY2017	apam	Tax Receivable Agreement Payments TaxReceivableAgreementPayments	30234000	USD
CY2016	apam	Tax Receivable Agreement Payments TaxReceivableAgreementPayments	27685000	USD
CY2018	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	21478000	USD
CY2017	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	162494000	USD
CY2016	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	0	USD
CY2018	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	166000	USD
CY2017	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	294000	USD
CY2017	apam	Paymentsto Purchase Preferred Stockand Subsidiary Equity PaymentstoPurchasePreferredStockandSubsidiaryEquity	162494000	USD
CY2016	apam	Paymentsto Purchase Preferred Stockand Subsidiary Equity PaymentstoPurchasePreferredStockandSubsidiaryEquity	0	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2564000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1477000	USD
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	762000	USD
CY2018	apam	Capitalcontributionstoconsolidatedinvestmentproducts Capitalcontributionstoconsolidatedinvestmentproducts	46572000	USD
CY2017	apam	Capitalcontributionstoconsolidatedinvestmentproducts Capitalcontributionstoconsolidatedinvestmentproducts	60481000	USD
CY2016	apam	Capitalcontributionstoconsolidatedinvestmentproducts Capitalcontributionstoconsolidatedinvestmentproducts	0	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-263483000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-218861000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-277707000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	55498000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	2390000	USD
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-9676000	USD
CY2018	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	39759000	USD
CY2017	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	0	USD
CY2016	us-gaap	Cash Divested From Deconsolidation CashDivestedFromDeconsolidation	0	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	159796000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	157406000	USD
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	167082000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	175535000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	159796000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	157406000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	160463000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	137286000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	156777000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	629000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	629000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	629000	USD
CY2018Q4	apam	Cashandcashequivalentsofconsolidatedinvestmentproducts Cashandcashequivalentsofconsolidatedinvestmentproducts	14443000	USD
CY2017Q4	apam	Cashandcashequivalentsofconsolidatedinvestmentproducts Cashandcashequivalentsofconsolidatedinvestmentproducts	21881000	USD
CY2016Q4	apam	Cashandcashequivalentsofconsolidatedinvestmentproducts Cashandcashequivalentsofconsolidatedinvestmentproducts	0	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	175535000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	159796000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	157406000	USD
CY2018	apam	Non Cash Transaction Initial Establishment Of Deferred Tax Assets NonCashTransactionInitialEstablishmentOfDeferredTaxAssets	24679000	USD
CY2017	apam	Non Cash Transaction Initial Establishment Of Deferred Tax Assets NonCashTransactionInitialEstablishmentOfDeferredTaxAssets	146241000	USD
CY2016	apam	Non Cash Transaction Initial Establishment Of Deferred Tax Assets NonCashTransactionInitialEstablishmentOfDeferredTaxAssets	33941000	USD
CY2018	apam	Non Cash Transaction Initial Establishment Of Amounts Payable Under Tax Receivable Agreements NonCashTransactionInitialEstablishmentOfAmountsPayableUnderTaxReceivableAgreements	20303000	USD
CY2017	apam	Non Cash Transaction Initial Establishment Of Amounts Payable Under Tax Receivable Agreements NonCashTransactionInitialEstablishmentOfAmountsPayableUnderTaxReceivableAgreements	120320000	USD
CY2016	apam	Non Cash Transaction Initial Establishment Of Amounts Payable Under Tax Receivable Agreements NonCashTransactionInitialEstablishmentOfAmountsPayableUnderTaxReceivableAgreements	25480000	USD
CY2018	apam	Increaseininvestmentsecuritiesduetodeconsolidationof Ci Ps IncreaseininvestmentsecuritiesduetodeconsolidationofCIPs	11381000	USD
CY2017	apam	Increaseininvestmentsecuritiesduetodeconsolidationof Ci Ps IncreaseininvestmentsecuritiesduetodeconsolidationofCIPs	0	USD
CY2016	apam	Increaseininvestmentsecuritiesduetodeconsolidationof Ci Ps IncreaseininvestmentsecuritiesduetodeconsolidationofCIPs	0	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	10694000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	11019000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	11108000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	20731000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	25296000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	18621000	USD
CY2018Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	0.70
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CY2018Q1	us-gaap	Share Price SharePrice	33.33
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CY2018	us-gaap	Variable Interest Entity Ownership Percentage VariableInterestEntityOwnershipPercentage	0.10
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CY2017	us-gaap	Other Selling And Marketing Expense OtherSellingAndMarketingExpense	2192000	USD
CY2016	us-gaap	Other Selling And Marketing Expense OtherSellingAndMarketingExpense	2390000	USD
CY2018	us-gaap	Noninterest Expense Distribution And Servicing Fees NoninterestExpenseDistributionAndServicingFees	26561000	USD
CY2017	us-gaap	Noninterest Expense Distribution And Servicing Fees NoninterestExpenseDistributionAndServicingFees	29620000	USD
CY2016	us-gaap	Noninterest Expense Distribution And Servicing Fees NoninterestExpenseDistributionAndServicingFees	32516000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	2700000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	3600000	USD
CY2018Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD
CY2018	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	500000	USD
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CY2017Q4	us-gaap	Other Investments OtherInvestments	4978000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	12252000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2018Q4	us-gaap	Investments Investments	18109000	USD
CY2017Q4	us-gaap	Investments Investments	4978000	USD
CY2018	us-gaap	Investment Income Nonoperating InvestmentIncomeNonoperating	688000	USD
CY2018	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	157000	USD
CY2018	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	531000	USD
CY2018Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	200000000	USD
CY2018Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	100000000	USD
CY2018	us-gaap	Interest Expense Debt InterestExpenseDebt	10600000	USD
CY2017	us-gaap	Interest Expense Debt InterestExpenseDebt	10900000	USD
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CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	50000000	USD
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CY2018Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	200000000	USD
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CY2017Q4	apam	Netassetsofconsolidatedinvestmentproductsmeasuredatfairvalue Netassetsofconsolidatedinvestmentproductsmeasuredatfairvalue	89169000	USD
CY2018Q4	apam	Netassetsofconsolidatedinvestmentproductscarryingvalue Netassetsofconsolidatedinvestmentproductscarryingvalue	2156000	USD
CY2017Q4	apam	Netassetsofconsolidatedinvestmentproductscarryingvalue Netassetsofconsolidatedinvestmentproductscarryingvalue	8762000	USD
CY2018Q4	apam	Netassetsofconsolidatedinvestmentproducts Netassetsofconsolidatedinvestmentproducts	64565000	USD
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CY2017Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	62581000	USD
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CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	828635000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	795624000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	720859000	USD
CY2018Q4	us-gaap	Receivables From Customers ReceivablesFromCustomers	65622000	USD
CY2017Q4	us-gaap	Receivables From Customers ReceivablesFromCustomers	73128000	USD
CY2018Q4	us-gaap	Other Receivables OtherReceivables	2069000	USD
CY2017Q4	us-gaap	Other Receivables OtherReceivables	3565000	USD
CY2018Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	67691000	USD
CY2017Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	76693000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	USD
CY2018	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	360287000	USD
CY2017	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	341060000	USD
CY2016	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	312676000	USD
CY2018	apam	Salariesincentivecompensationandbenefits Salariesincentivecompensationandbenefits	413166000	USD
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CY2016	apam	Salariesincentivecompensationandbenefits Salariesincentivecompensationandbenefits	355835000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	0	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12678000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	28080000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	413166000	USD
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CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	14000000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	6546999	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	25800000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	19800000	USD
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CY2018Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	102500000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y3M18D
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2600000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1500000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	18247000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	21960000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	14704000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3993000	USD
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CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2180000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	495000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	469000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	639000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	22735000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	25092000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	17523000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	22218000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	396502000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	32124000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2645000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1086000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1836000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	24863000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	395416000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	33960000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	47598000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	420508000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	51483000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
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CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.009
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CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.005
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.024
CY2018	apam	Tax Rate Reconciliation Rate Benefit From Flow Through Entity Percent TaxRateReconciliationRateBenefitFromFlowThroughEntityPercent	0.067
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CY2018	apam	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Federal Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017FederalPercent	0
CY2017	apam	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Federal Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017FederalPercent	-0.439
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CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.005
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.158
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.736
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.229
CY2018	apam	Approximate Percentage Of Earnings Not Subject To Income Taxes ApproximatePercentageOfEarningsNotSubjectToIncomeTaxes	0.33
CY2017	apam	Approximate Percentage Of Earnings Not Subject To Income Taxes ApproximatePercentageOfEarningsNotSubjectToIncomeTaxes	0.38
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CY2017Q4	apam	Tax Cutsand Jobs Actof2017 Tax Rate Usedto Measure Deferred Tax Assets TaxCutsandJobsActof2017TaxRateUsedtoMeasureDeferredTaxAssets	0.370
CY2018Q4	apam	Tax Cutsand Jobs Actof2017 Tax Rate Usedto Measure Deferred Tax Assets TaxCutsandJobsActof2017TaxRateUsedtoMeasureDeferredTaxAssets	0.235
CY2018	apam	Tax Receivable Agreement Percentage To Be Retained By Entity TaxReceivableAgreementPercentageToBeRetainedByEntity	0.15
CY2018	apam	Tax Receivable Agreement Payment Period TaxReceivableAgreementPaymentPeriod	P125D
CY2017Q4	apam	Deferred Tax Assets Step Up Of Tax Basis DeferredTaxAssetsStepUpOfTaxBasis	410690000	USD
CY2017Q4	apam	Amounts Payable Under Tax Receivable Agreement AmountsPayableUnderTaxReceivableAgreement	385413000	USD
CY2018	apam	Deferred Tax Assets Exchanges DeferredTaxAssetsExchanges	16199000	USD
CY2018	apam	Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Deferred Tax Asset Existing Income Tax Expense Benefit TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetExistingIncomeTaxExpenseBenefit	352000000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	apam	Tax Receivable Agreement Percentage Savings Required To Be Paid To Shareholders TaxReceivableAgreementPercentageSavingsRequiredToBePaidToShareholders	0.85
CY2018	apam	Tax Receivable Agreement Percentage Savings Required To Be Paid To Shareholders TaxReceivableAgreementPercentageSavingsRequiredToBePaidToShareholders	0.85
CY2016Q4	apam	Deferred Tax Assets Step Up Of Tax Basis DeferredTaxAssetsStepUpOfTaxBasis	653942000	USD
CY2016Q4	apam	Amounts Payable Under Tax Receivable Agreement AmountsPayableUnderTaxReceivableAgreement	586246000	USD
CY2017	apam	Deferred Tax Assets Exchanges DeferredTaxAssetsExchanges	28134000	USD
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CY2017	apam	Amortizationof Tradta AmortizationofTRADTA	42891000	USD
CY2017	apam	Tax Receivable Agreement Payments TaxReceivableAgreementPayments	30234000	USD
CY2017	apam	Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Tax Rate Deferred Tax Asset Amortizable Basis Provisional Income Tax Expense Benefit TaxCutsandJobsActof2017IncompleteAccountingChangeinTaxRateDeferredTaxAssetAmortizableBasisProvisionalIncomeTaxExpenseBenefit	-341669000	USD
CY2017	apam	Tax Cutsand Jobs Actof2017 Incomplete Accounting Changein Federal Tax Rate Impacton Tra Payable TaxCutsandJobsActof2017IncompleteAccountingChangeinFederalTaxRateImpactonTRAPayable	-290418000	USD
CY2017	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-245000	USD
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CY2018	apam	Noncash Transaction Initial Establishmentof Amounts Payable Under Tax Receivable Agreements Excluding Impactof Changein Ownership NoncashTransactionInitialEstablishmentofAmountsPayableUnderTaxReceivableAgreementsExcludingImpactofChangeinOwnership	13770000	USD
CY2018	apam	Amortizationof Tradta AmortizationofTRADTA	29851000	USD
CY2018	apam	Tax Receivable Agreement Payments TaxReceivableAgreementPayments	36111000	USD
CY2018	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-10000	USD
CY2018	apam	Net Gain Loss On The Tax Receivable Agreements Other NetGainLossOnTheTaxReceivableAgreementsOther	-251000	USD
CY2018Q4	apam	Deferred Tax Assets Step Up Of Tax Basis DeferredTaxAssetsStepUpOfTaxBasis	404715000	USD
CY2018Q4	apam	Amounts Payable Under Tax Receivable Agreement AmountsPayableUnderTaxReceivableAgreement	369355000	USD
CY2018Q4	apam	Deferred Tax Assets Step Up Of Tax Basis DeferredTaxAssetsStepUpOfTaxBasis	404715000	USD
CY2017Q4	apam	Deferred Tax Assets Step Up Of Tax Basis DeferredTaxAssetsStepUpOfTaxBasis	410690000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	24413000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	18522000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	429128000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	429212000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	429128000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	429212000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	259000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-1895000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-1132000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1895000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-873000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	158309000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	49599000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	73030000	USD
CY2018	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	19447000	USD
CY2017	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	16026000	USD
CY2016	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	13059000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	138862000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	33573000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	59971000	USD
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	48862435	shares
CY2017	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	44647318	shares
CY2016	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	38137810	shares
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	2.84
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.75
CY2016	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.57
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	28165335	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	30990378	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	36351534	shares
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	6900000	USD
CY2017	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	6400000	USD
CY2016	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	6000000.0	USD
CY2018	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	500000	USD
CY2017	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	600000	USD
CY2016	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	100000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	60671000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	48157000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	31533000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	27132000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	29138000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	21025000	USD
CY2018	us-gaap	Depreciation Depreciation	5600000	USD
CY2017	us-gaap	Depreciation Depreciation	5300000	USD
CY2016	us-gaap	Depreciation Depreciation	5200000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	13900000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	10500000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	9800000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	14123000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	15340000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	15215000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	13748000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	12378000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	57185000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	127989000	USD
CY2018Q4	us-gaap	Accounts Receivable Related Parties AccountsReceivableRelatedParties	600000	USD
CY2017Q4	us-gaap	Accounts Receivable Related Parties AccountsReceivableRelatedParties	2300000	USD
CY2018Q1	us-gaap	Revenues Revenues	212008000	USD
CY2018Q2	us-gaap	Revenues Revenues	212296000	USD
CY2018Q3	us-gaap	Revenues Revenues	212788000	USD
CY2018Q4	us-gaap	Revenues Revenues	191543000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	79986000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	78877000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	81837000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	64241000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	26052000	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	23307000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24021000	USD
CY2018Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	17674000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	4338000	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	2332000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	178000	USD
CY2018Q4	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-2021000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	41274000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	42006000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	42518000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	32511000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.72
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.77
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.57
CY2017Q1	us-gaap	Revenues Revenues	184074000	USD
CY2017Q2	us-gaap	Revenues Revenues	196273000	USD
CY2017Q3	us-gaap	Revenues Revenues	204556000	USD
CY2017Q4	us-gaap	Revenues Revenues	210721000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	58032000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	66503000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	80630000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	81246000	USD
CY2017Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	22760000	USD
CY2017Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	22197000	USD
CY2017Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	27234000	USD
CY2017Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	26847000	USD
CY2017Q1	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	0	USD
CY2017Q2	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	4000	USD
CY2017Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	610000	USD
CY2017Q4	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	1486000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	19795000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	26632000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	30665000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	-27493000	USD
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.45
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.67

Files In Submission

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2018 Q4 Form 10-K Financial Statement

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2018 Q4 Form 10-K Financial Statement

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Income Statement

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