$NNI
NELNET INC Stock $nni

$nni Overview Financials Valuation SEC Filings Company Website

2018 Form 10-K Financial Statement

#000125860219000022 Filed on February 27, 2019

Income Statement

Concept	2018	2017 Q4	2017 Q3
Revenue	$924.3M	$345.0M	$0.00
YoY Change		-5.22%
Cost Of Revenue	$76.49M	$175.2M	$17.78M
YoY Change	30.47%	60.73%
Gross Profit	$847.8M	$169.7M	-$17.78M
YoY Change	-1546.02%	-33.42%
Gross Profit Margin	91.72%	49.19%
Selling, General & Admin	$436.2M	$81.20M	$74.20M
YoY Change	44.48%	19.41%	16.48%
% of Gross Profit	51.45%	47.85%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$184.7M	$38.00M	$7.700M
YoY Change	34.0%	-1.3%	32.76%
% of Gross Profit	21.78%	22.39%
Operating Expenses	$689.4M	$129.5M	$121.8M
YoY Change	42.28%	27.09%	14.02%
Operating Profit	$158.4M	$40.20M	-$139.5M
YoY Change	-129.16%	-73.73%	30.67%
Interest Expense	$669.9M		$121.7M
YoY Change	44.01%		26.21%
% of Operating Profit	422.95%
Other Income/Expense, Net	$166.3M	$38.46M	$29.50M
YoY Change	16.21%	23.08%	11.78%
Pretax Income	$286.3M	$40.20M	$69.10M
YoY Change	26.3%	-73.74%	-47.68%
Income Tax	$58.77M	-$5.486M	$25.56M
% Of Pretax Income	20.53%	-13.65%	36.99%
Net Earnings	$227.9M	$48.10M	$46.30M
YoY Change	31.62%	-51.09%	-45.07%
Net Earnings / Revenue	24.66%	13.94%
Basic Earnings Per Share
Diluted Earnings Per Share	$5.641M	$1.173M	$1.113M
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding

Balance Sheet

Concept	2018	2017 Q4	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$121.0M	$67.00M	$254.0M
YoY Change	80.6%	-4.29%	279.1%
Cash & Equivalents	$121.0M	$66.75M	$254.4M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$60.00M	$54.00M	$71.00M
Other Receivables	$679.0M	$431.0M	$396.0M
Total Short-Term Assets	$860.0M	$552.0M	$721.0M
YoY Change	55.8%	9.31%	43.63%
LONG-TERM ASSETS
Property, Plant & Equipment	$345.0M	$248.1M	$208.4M
YoY Change	39.11%	100.39%	93.89%
Goodwill		$138.8M	$147.3M
YoY Change		-5.81%	0.0%
Intangibles		$38.43M	$40.74M
YoY Change		-19.63%	-20.06%
Long-Term Investments	$249.0M	$241.0M	$277.0M
YoY Change	3.32%	-5.12%	7.36%
Other Assets	$1.071B	$875.0M	$831.0M
YoY Change	22.4%	-20.53%	-13.8%
Total Long-Term Assets	$24.36B	$23.41B	$24.05B
YoY Change	4.05%	-12.27%	-11.48%
TOTAL ASSETS
Total Short-Term Assets	$860.0M	$552.0M	$721.0M
Total Long-Term Assets	$24.36B	$23.41B	$24.05B
Total Assets	$25.22B	$23.96B	$24.77B
YoY Change	5.25%	-11.87%	-10.48%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$370.0M	$187.0M	$105.0M
YoY Change	97.86%	55.83%	14.13%
Accrued Expenses	$62.00M	$50.00M	$48.00M
YoY Change	24.0%	8.7%	11.63%
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	$432.0M	$237.0M	$153.0M
YoY Change	82.28%	42.77%	13.33%
LONG-TERM LIABILITIES
Long-Term Debt	$22.22B	$21.36B	$22.24B
YoY Change	4.04%	-13.42%	-12.17%
Other Long-Term Liabilities	$256.0M	$205.0M	$245.0M
YoY Change	24.88%	-28.82%	5.15%
Total Long-Term Liabilities	$22.48B	$21.56B	$22.49B
YoY Change	4.23%	-13.6%	-12.01%
TOTAL LIABILITIES
Total Short-Term Liabilities	$432.0M	$237.0M	$153.0M
Total Long-Term Liabilities	$22.48B	$21.56B	$22.49B
Total Liabilities	$22.92B	$21.80B	$22.64B
YoY Change	5.05%	-13.23%	-11.87%
SHAREHOLDERS EQUITY
Retained Earnings		$2.144B	$2.107B
YoY Change		4.28%	6.85%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.304B	$2.150B	$2.112B
YoY Change
Total Liabilities & Shareholders Equity	$25.22B	$23.96B	$24.77B
YoY Change	5.25%	-11.87%	-10.48%

Cashflow Statement

Concept	2018	2017 Q4	2017 Q3
OPERATING ACTIVITIES
Net Income	$227.9M	$48.10M	$46.30M
YoY Change	31.62%	-51.09%	-45.07%
Depreciation, Depletion And Amortization	$184.7M	$38.00M	$7.700M
YoY Change	34.0%	-1.3%	32.76%
Cash From Operating Activities	$270.9M	$92.00M	$98.20M
YoY Change	-15.94%	38.35%	17.46%
INVESTING ACTIVITIES
Capital Expenditures	$125.0M	-$49.30M	-$35.90M
YoY Change	-19.86%	137.02%	108.72%
Acquisitions	$12.56M
YoY Change
Other Investing Activities	$67.04M	$476.7M	$734.2M
YoY Change	128.5%	-22.64%	-30.2%
Cash From Investing Activities	-$732.4M	$427.4M	$698.3M
YoY Change	-124.83%	-28.22%	-32.51%
FINANCING ACTIVITIES
Cash Dividend Paid	$26.84M
YoY Change	11.38%
Common Stock Issuance & Retirement, Net	$43.97M
YoY Change	-35.54%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$711.8M	-932.3M	-611.3M
YoY Change	-120.33%	41.41%	-44.94%
NET CHANGE
Cash From Operating Activities	$270.9M	92.00M	98.20M
Cash From Investing Activities	-$732.4M	427.4M	698.3M
Cash From Financing Activities	$711.8M	-932.3M	-611.3M
Net Change In Cash	$250.3M	-412.9M	185.2M
YoY Change	-209.67%	-15980.77%	2244.3%
FREE CASH FLOW
Cash From Operating Activities	$270.9M	$92.00M	$98.20M
Capital Expenditures	$125.0M	-$49.30M	-$35.90M
Free Cash Flow	$145.9M	$141.3M	$134.1M
YoY Change	-12.27%	61.86%	33.04%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	dei	Entity Registrant Name EntityRegistrantName	NELNET INC
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0001258602
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	60388000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	54590000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3271000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1436000	USD
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	0	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	0	USD
CY2018	wfx	Loans Receivable Consolidation Loans Rebate Fee Percent LoansReceivableConsolidationLoansRebateFeePercent	0.0105
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	0	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2018	dei	Document Type DocumentType	10-K
CY2018Q2	dei	Entity Public Float EntityPublicFloat	1224618686	USD
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	22377142000	USD
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	21814507000	USD
CY2018Q4	wfx	Cash And Cash Equivalents Not Held At Related Party CashAndCashEquivalentsNotHeldAtRelatedParty	9472000	USD
CY2017Q4	wfx	Cash And Cash Equivalents Not Held At Related Party CashAndCashEquivalentsNotHeldAtRelatedParty	6982000	USD
CY2018Q4	wfx	Cash And Cash Equivalents Related Party CashAndCashEquivalentsRelatedParty	111875000	USD
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CY2018Q4	wfx	Investments And Notes Receivables InvestmentsAndNotesReceivables	249370000	USD
CY2017Q4	wfx	Investments And Notes Receivables InvestmentsAndNotesReceivables	240538000	USD
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CY2017Q4	us-gaap	Restricted Cash RestrictedCash	688193000	USD
CY2018Q4	wfx	Restricted Cash Due To Customers RestrictedCashDueToCustomers	369678000	USD
CY2017Q4	wfx	Restricted Cash Due To Customers RestrictedCashDueToCustomers	187121000	USD
CY2018Q4	us-gaap	Interest Receivable InterestReceivable	679197000	USD
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CY2018Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	59531000	USD
CY2017Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	37863000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	156912000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	138759000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	114290000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	38427000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	344784000	USD
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CY2018Q4	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue	1818000	USD
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CY2018Q4	us-gaap	Assets Assets	25220968000	USD
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CY2018Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	61679000	USD
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CY2018Q4	us-gaap	Payables To Customers PayablesToCustomers	369678000	USD
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CY2018Q4	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Liability At Fair Value DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue	0	USD
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CY2018Q4	us-gaap	Liabilities Liabilities	22906189000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	21799048000	USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	622000	USD
CY2017Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	521000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2299556000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2143983000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	3883000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	4617000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	10315000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	15858000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2314779000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2165387000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	25220968000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	23964435000	USD
CY2018	wfx	Loan Interest LoanInterest	897666000	USD
CY2017	wfx	Loan Interest LoanInterest	757731000	USD
CY2016	wfx	Loan Interest LoanInterest	751280000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	26600000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	12695000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	9466000	USD
CY2018	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	924266000	USD
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CY2016	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	359063000	USD
CY2018	us-gaap	Other Income OtherIncome	54446000	USD
CY2017	us-gaap	Other Income OtherIncome	52826000	USD
CY2016	us-gaap	Other Income OtherIncome	58255000	USD
CY2018	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	359000	USD
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CY2017	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	-18554000	USD
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CY2018	us-gaap	Noninterest Income NoninterestIncome	832532000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	479062000	USD
CY2016	us-gaap	Noninterest Income NoninterestIncome	524218000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	76492000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	58628000	USD
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CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	436179000	USD
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CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	86896000	USD
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CY2018	us-gaap	Operating Expenses OperatingExpenses	701106000	USD
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CY2016	us-gaap	Operating Expenses OperatingExpenses	433285000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	286294000	USD
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CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	5.57
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CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	40909022	shares
CY2017	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	41791941	shares
CY2016	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	42669070	shares
CY2018	us-gaap	Profit Loss ProfitLoss	227524000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	161821000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	257501000	USD
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CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	5789000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	978000	USD
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CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	1907000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	69000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-66000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	1436000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-113000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2446000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	227533000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	161708000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4086000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	259947000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-389000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-11345000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	750000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	227922000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	173053000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	259197000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1892158000	USD
CY2016	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	1366000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	257501000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2446000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	572000	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	21188000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	4219000	USD
CY2016	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	69091000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2070925000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	19578000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	161821000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-113000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1645000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	24097000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	3621000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4193000	USD
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	68896000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2165387000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	1023000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	227524000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	525000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	26839000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	5174000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6194000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	45331000	USD
CY2017Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	1264000	USD
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	19101000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2314779000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	227913000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	173166000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	256751000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-389000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-11345000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	750000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	227524000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	161821000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	257501000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	184682000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	137823000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	122547000	USD
CY2018	wfx	Student Loan Discount Accretion StudentLoanDiscountAccretion	-40800000	USD
CY2017	wfx	Student Loan Discount Accretion StudentLoanDiscountAccretion	-44812000	USD
CY2016	wfx	Student Loan Discount Accretion StudentLoanDiscountAccretion	-40617000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	23000000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	14450000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	13500000	USD
CY2018	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	1014000	USD
CY2017	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	26379000	USD
CY2016	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	59895000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	0	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-45600000	USD
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	11849000	USD
CY2018	wfx	Paymentstoterminateandoramendderivativeinstrumentsnetofproceeds Paymentstoterminateandoramendderivativeinstrumentsnetofproceeds	-10283000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	6539000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	4416000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	4348000	USD
CY2017	wfx	Paymentstoterminateandoramendderivativeinstrumentsnetofproceeds Paymentstoterminateandoramendderivativeinstrumentsnetofproceeds	30382000	USD
CY2016	wfx	Paymentstoterminateandoramendderivativeinstrumentsnetofproceeds Paymentstoterminateandoramendderivativeinstrumentsnetofproceeds	-3999000	USD
CY2018	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	4770000	USD
CY2017	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	929000	USD
CY2016	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	0	USD
CY2018	wfx	Proceeds From Clearinghouse ProceedsFromClearinghouse	40382000	USD
CY2017	wfx	Proceeds From Clearinghouse ProceedsFromClearinghouse	76325000	USD
CY2016	wfx	Proceeds From Clearinghouse ProceedsFromClearinghouse	0	USD
CY2018	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	359000	USD
CY2017	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	2902000	USD
CY2016	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	7981000	USD
CY2018	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	8139000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	-2108000	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	-979000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10981000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1544000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	27005000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	11721000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	3626000	USD
CY2016	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2219000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	687000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1329000	USD
CY2018	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	248869000	USD
CY2017	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	39203000	USD
CY2016	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	7439000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-3059000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4234000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-10667000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4069000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	42270000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5416000	USD
CY2018	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	11640000	USD
CY2017	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	4362000	USD
CY2016	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	14170000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-12506000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2341000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	2409000	USD
CY2018	us-gaap	Increase Decrease In Payables To Customers IncreaseDecreaseInPayablesToCustomers	59388000	USD
CY2017	us-gaap	Increase Decrease In Payables To Customers IncreaseDecreaseInPayablesToCustomers	67419000	USD
CY2016	us-gaap	Increase Decrease In Payables To Customers IncreaseDecreaseInPayablesToCustomers	-25069000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	270892000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	322267000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	300188000	USD
CY2018	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	3847553000	USD
CY2017	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	312293000	USD
CY2016	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	319511000	USD
CY2018	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	74698000	USD
CY2017	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	13183000	USD
CY2016	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	29633000	USD
CY2018	us-gaap	Proceeds From Collection Of Finance Receivables ProceedsFromCollectionOfFinanceReceivables	3322783000	USD
CY2017	us-gaap	Proceeds From Collection Of Finance Receivables ProceedsFromCollectionOfFinanceReceivables	3363526000	USD
CY2016	us-gaap	Proceeds From Collection Of Finance Receivables ProceedsFromCollectionOfFinanceReceivables	3735772000	USD
CY2018	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	23712000	USD
CY2017	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	53203000	USD
CY2016	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	44760000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	46424000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	128523000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	94673000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	71415000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	156540000	USD
CY2016	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	144252000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	67040000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	29339000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	21511000	USD
CY2018	wfx	Proceeds From Investments And Notes Receivables ProceedsFromInvestmentsAndNotesReceivables	23039000	USD
CY2017	wfx	Proceeds From Investments And Notes Receivables ProceedsFromInvestmentsAndNotesReceivables	11545000	USD
CY2016	wfx	Proceeds From Investments And Notes Receivables ProceedsFromInvestmentsAndNotesReceivables	15898000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	125023000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	156005000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	67602000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	12562000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	4511000	USD
CY2016	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-732351000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	2949982000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3407752000	USD
CY2018	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	3113503000	USD
CY2017	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	5403224000	USD
CY2016	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	4134890000	USD
CY2018	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	3922962000	USD
CY2017	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1984558000	USD
CY2016	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	650909000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	13808000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6497000	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5845000	USD
CY2018	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
CY2017	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	850000	USD
CY2016	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	26839000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	24097000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	21188000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	45331000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	68896000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	69091000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1359000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	678000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	889000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	13449000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2016	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	918000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	19473000	USD
CY2016	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1241000	USD
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	525000	USD
CY2017	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	1645000	USD
CY2016	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	572000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	711784000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3500500000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3578547000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	250325000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-228251000	USD
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	129393000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	942066000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1170317000	USD
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1040924000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1192391000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	942066000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1170317000	USD
CY2018	us-gaap	Interest Paid InterestPaid	591394000	USD
CY2017	us-gaap	Interest Paid InterestPaid	390278000	USD
CY2016	us-gaap	Interest Paid InterestPaid	301118000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	473000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	96721000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	115415000	USD
CY2018Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	14700000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	121347000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	66752000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	69654000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	63529000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	701366000	USD
CY2017Q4	us-gaap	Restricted Cash RestrictedCash	688193000	USD
CY2016Q4	us-gaap	Restricted Cash RestrictedCash	980961000	USD
CY2015Q4	us-gaap	Restricted Cash RestrictedCash	832624000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	322267000	USD
CY2018Q4	wfx	Restricted Cash Due To Customers RestrictedCashDueToCustomers	369678000	USD
CY2017Q4	wfx	Restricted Cash Due To Customers RestrictedCashDueToCustomers	187121000	USD
CY2016Q4	wfx	Restricted Cash Due To Customers RestrictedCashDueToCustomers	119702000	USD
CY2015Q4	wfx	Restricted Cash Due To Customers RestrictedCashDueToCustomers	144771000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1192391000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	942066000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1170317000	USD
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1040924000	USD
CY2018	us-gaap	Nature Of Operations NatureOfOperations	Description of Business<div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Nelnet, Inc. and its subsidiaries (“Nelnet” or the “Company”) is a diverse company with a focus on delivering education-related products and services and loan asset management. The largest operating businesses engage in loan servicing; education technology, services, and payment processing; and communications. A significant portion of the Company's revenue is net interest income earned on a portfolio of federally insured student loans. The Company also makes investments to further diversify the Company both within and outside of its historical core education-related businesses, including, but not limited to, investments in real estate and early-stage and emerging growth companies. Substantially all revenue from external customers is earned, and all long-lived assets are located, in the United States.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company was formed as a Nebraska corporation in 1978 to service federal student loans for two local banks. The Company built on this initial foundation as a servicer to become a leading originator, holder, and servicer of federal student loans, principally consisting of loans originated under the Federal Family Education Loan Program (“FFELP” or “FFEL Program”) of the U.S. Department of Education (the “Department”). </span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Health Care and Education Reconciliation Act of 2010 (the "Reconciliation Act of 2010”) discontinued new loan originations under the FFEL Program, effective July 1, 2010, and requires that all new federal student loan originations be made directly by the Department through the Federal Direct Loan Program. This law does not alter or affect the terms and conditions of existing FFELP loans. As a result of this law, the Company no longer originates new FFELP loans. To reduce its reliance on interest income on student loans, the Company has expanded its services and products. This expansion has been accomplished through internal growth and innovation as well as business acquisitions.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company has four reportable operating segments. The Company's reportable operating segments include:</span></div><div style="text-indent:31.5pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:1pt;"> Loan Servicing and Systems</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> ("LSS")</span></div><div style="text-indent:31.5pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:1pt;"> Education Technology, Services, and Payment Processing</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> ("ETS&PP")</span></div><div style="text-indent:31.5pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:1pt;"> Communications</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> </span></div><div style="text-indent:31.5pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:1pt;"> Asset Generation and Management</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> ("AGM")</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">During the first quarter of 2018, the Company changed the name of the Tuition Payment Processing and Campus Commerce operating segment to Education Technology, Services, and Payment Processing to better describe the evolution of services this operating segment provides. In addition, the Loan Systems and Servicing segment was retitled as Loan Servicing and Systems. As a result, the line items "tuition payment processing, school information, and campus commerce revenue" and "loan systems and servicing revenue" on the consolidated statements of income were changed to "education technology, services, and payment processing revenue" and "loan servicing and systems revenue," respectively.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">A description of each reportable operating segment is included below. See note 14 for additional information on the Company's segment reporting.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Loan Servicing and Systems</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The primary service offerings of the Loan Servicing and Systems operating segment include:</span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">Servicing federally-owned student loans for the Department of Education</span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">Servicing FFELP loans</span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">Originating and servicing private education and consumer loans</span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">Providing student loan servicing software and other information technology products and services</span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">Providing outsourced services including call center, processing, and marketing services</span></div><div><span><br/></span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">LSS provides for the servicing of the Company's student loan portfolio and the portfolios of third parties. The loan servicing activities include loan conversion activities, application processing, borrower updates, customer service, payment processing, due diligence procedures, funds management reconciliations, and claim processing. These activities are performed internally for the Company's portfolio in addition to generating external fee revenue when performed for third-party clients. </span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">On February 7, 2018, the Company acquired Great Lakes Educational Loan Services, Inc. ("Great Lakes"). See note 7 for additional information related to this acquisition. Nelnet Servicing, LLC, ("Nelnet Servicing"), a subsidiary of the Company, and Great Lakes are two of four private sector companies (referred to as Title IV Additional Servicers, or "TIVAS") awarded a student loan servicing contract by the Department to provide additional servicing capacity for loans owned by the Department. </span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">This operating segment also provides student loan servicing software, which is used internally by the Company and licensed to third-party student loan holders and servicers. These software systems have been adapted so that they can be offered as hosted servicing software solutions usable by third parties to service various types of student loans, including Federal Direct Loan Program and FFEL Program loans. </span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">This segment also provides business process outsourcing specializing in contact center management. The contact center solutions and services include taking inbound calls, helping with outreach campaigns and sales, and interacting with customers through multi-channels.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Education Technology, Services, and Payment Processing</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">ETS&PP provides products and services to help students and families manage the payment of education costs at all levels (K-12 and higher education). It also provides innovative education-focused technologies, services, and support solutions to help schools automate administrative processes and collect and process commerce data.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In the K-12 market, the Company (known as FACTS Management) offers (i) actively managed tuition payment plans and billing services; (ii) assistance with financial needs assessment and donor management; (iii) school information system software that helps schools automate administrative processes such as admissions, enrollment, scheduling, student billing, attendance, and grade book management; (iv) professional development and educational instruction services; and (v) innovative technology products that aid in teacher and student evaluations. In the higher education market (known as Nelnet Campus Commerce) the Company offers two principal products: actively managed tuition payment plans, and education technologies and payment processing.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">Outside of the education market, the Company also offers technology and payments services including electronic transfer and credit card processing, reporting, billing and invoicing, mobile and virtual terminal solutions, and specialized integrations to business software. In addition, this operating segment offers mobile first technology focused on increasing engagement, online giving, and communication for church and not-for-profit customers.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Communications</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">ALLO Communications LLC (“ALLO”) provides pure fiber optic service to homes and businesses for internet, television, and telephone services. The acquisition of ALLO in 2015 provides additional diversification of the Company's revenues and cash flows outside of education. In addition, the acquisition leverages the Company's existing infrastructure, customer service capabilities and call centers, and financial strength and liquidity for continued growth.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">ALLO derives its revenue primarily from the sale of communication services to residential and business customers in Nebraska and Colorado. Internet and television services include revenue from residential and business customers for subscriptions to ALLO's data and video products. ALLO data services provide high-speed internet access over ALLO's all-fiber network at various symmetrical speeds of up to 1 gigabit per second for residential customers and is capable of providing symmetrical speeds of over 1 gigabit per second for business customers. Telephone services include local and long distance telephone service, hostedPBX services, and other basic services.</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Asset Generation and Management </span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company's Asset Generation and Management operating segment includes the acquisition, management, and ownership of the Company's loan assets. Substantially all loan assets included in this segment are student loans originated under the FFEL Program, including the Stafford Loan Program, the PLUS Loan program, and loans that reflect the consolidation into a single loan of certain previously separate borrower obligations (“Consolidation” loans). The Company also acquires private education and consumer loans. The Company generates a substantial portion of its earnings from the spread, referred to as the Company's loan spread, between the yield it receives on its loan portfolio and the associated costs to finance such portfolio. The student loan assets are held in a series of education lending subsidiaries and associated securitization trusts designed specifically for this purpose. In addition to the loan spread earned on its portfolio, all costs and activity associated with managing the portfolio, such as servicing of the assets and debt maintenance, are included in this segment.</span></div><div style="margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Corporate and Other Activities</span></div><div style="text-align:justify;margin-bottom:9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Other business activities and operating segments that are not reportable are combined and included in Corporate and Other Activities. Corporate and Other Activities include the following items:</span></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The operating results of Whitetail Rock Capital Management, LLC ("WRCM"), the Company's SEC-registered investment advisor subsidiary</span></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">Income earned on certain investment activities, including real estate</span></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">Interest expense incurred on unsecured debt transactions</span></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">•</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">Other product and service offerings that are not considered reportable operating segments</span></div><div style="padding-left:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Corporate and Other Activities also include certain corporate activities and overhead functions related to executive management, internal audit, human resources, accounting, legal, enterprise risk management, information technology, occupancy, and marketing. These costs are allocated to each operating segment based on estimated use of such activities and services.</span></div>
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	operating_segment
CY2017	us-gaap	Increase Decrease In Payables To Customers IncreaseDecreaseInPayablesToCustomers	67419000	USD
CY2017	wfx	Proceeds From Clearinghouse ProceedsFromClearinghouse	76325000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	2949982000	USD
CY2016	us-gaap	Increase Decrease In Payables To Customers IncreaseDecreaseInPayablesToCustomers	-25069000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	300188000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	21511000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3407752000	USD
CY2018	us-gaap	Use Of Estimates UseOfEstimates	Use of EstimatesThe preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make a number of estimates and assumptions that affect the reported amounts of assets and liabilities, reported amounts of revenues and expenses, and other disclosures. Actual results may differ from those estimates.
CY2018	wfx	Threshold Period Past Due For Financing Receivabletobe Placedon Nonaccrual Status ThresholdPeriodPastDueForFinancingReceivabletobePlacedonNonaccrualStatus	P90D
CY2018Q4	wfx	Purchasedaccruedinterest Purchasedaccruedinterest	181000000.0	USD
CY2018	us-gaap	Late Fee Income Generated By Servicing Financial Assets Amount LateFeeIncomeGeneratedByServicingFinancialAssetsAmount	12302000	USD
CY2017	us-gaap	Late Fee Income Generated By Servicing Financial Assets Amount LateFeeIncomeGeneratedByServicingFinancialAssetsAmount	11604000	USD
CY2016	us-gaap	Late Fee Income Generated By Servicing Financial Assets Amount LateFeeIncomeGeneratedByServicingFinancialAssetsAmount	12838000	USD
CY2018	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	9579000	USD
CY2017	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	939000	USD
CY2016	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	4549000	USD
CY2018	wfx	Digital Marketing And Content Solutions Revenue DigitalMarketingAndContentSolutionsRevenue	0	USD
CY2017	wfx	Digital Marketing And Content Solutions Revenue DigitalMarketingAndContentSolutionsRevenue	12572000	USD
CY2016	wfx	Digital Marketing And Content Solutions Revenue DigitalMarketingAndContentSolutionsRevenue	14254000	USD
CY2018	wfx	Other Income Miscellaneous OtherIncomeMiscellaneous	20059000	USD
CY2017	wfx	Other Income Miscellaneous OtherIncomeMiscellaneous	14988000	USD
CY2016	wfx	Other Income Miscellaneous OtherIncomeMiscellaneous	16159000	USD
CY2018	us-gaap	Other Income OtherIncome	54446000	USD
CY2017	us-gaap	Other Income OtherIncome	52826000	USD
CY2016	us-gaap	Other Income OtherIncome	58255000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	39122000	USD
CY2017Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	32276000	USD
CY2017Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	32276000	USD
CY2016Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	33141000	USD
CY2015Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	31068000	USD
CY2018	wfx	Contract With Customer Liability Increase Decrease Deferred Revenue ContractWithCustomerLiabilityIncreaseDecreaseDeferredRevenue	113292000	USD
CY2017	wfx	Contract With Customer Liability Increase Decrease Deferred Revenue ContractWithCustomerLiabilityIncreaseDecreaseDeferredRevenue	94789000	USD
CY2016	wfx	Contract With Customer Liability Increase Decrease Deferred Revenue ContractWithCustomerLiabilityIncreaseDecreaseDeferredRevenue	89580000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-109742000	USD
CY2017	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-93670000	USD
CY2016	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-86627000	USD
CY2018	wfx	Contract With Customer Liability Increase Decrease Other ContractWithCustomerLiabilityIncreaseDecreaseOther	3296000	USD
CY2017	wfx	Contract With Customer Liability Increase Decrease Other ContractWithCustomerLiabilityIncreaseDecreaseOther	-1984000	USD
CY2016	wfx	Contract With Customer Liability Increase Decrease Other ContractWithCustomerLiabilityIncreaseDecreaseOther	-880000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	39122000	USD
CY2017Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	32276000	USD
CY2016Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	33141000	USD
CY2018Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	22520498000	USD
CY2017Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	21995877000	USD
CY2018Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	53572000	USD
CY2017Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	113695000	USD
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	22377142000	USD
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	21814507000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	54590000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	23000000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	18867000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	665000	USD
CY2018	wfx	Purchase Saleof Financing Receivables PurchaseSaleofFinancingReceivables	1000000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	60388000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	51842000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	14450000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	13070000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	768000	USD
CY2017	wfx	Purchase Saleof Financing Receivables PurchaseSaleofFinancingReceivables	600000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	54590000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	50498000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	13500000	USD
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	14020000	USD
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	954000	USD
CY2016	wfx	Purchase Saleof Financing Receivables PurchaseSaleofFinancingReceivables	910000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	51842000	USD
CY2018Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	318359000	USD
CY2018Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	22218740000	USD
CY2017Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	370554000	USD
CY2017Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	21356573000	USD
CY2018	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	12905000	USD
CY2018	wfx	Debt Instrument Repurchase Price DebtInstrumentRepurchasePrice	12546000	USD
CY2018	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	359000	USD
CY2016	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	7981000	USD
CY2017	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	184210000	USD
CY2017	wfx	Debt Instrument Repurchase Price DebtInstrumentRepurchasePrice	181308000	USD
CY2017	us-gaap	Gain Loss On Repurchase Of Debt Instrument GainLossOnRepurchaseOfDebtInstrument	2902000	USD
CY2016	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	85412000	USD
CY2016	wfx	Debt Instrument Repurchase Price DebtInstrumentRepurchasePrice	77431000	USD
CY2018	wfx	Proceeds Payments To Terminate And Or Amend Derivative Instruments ProceedsPaymentsToTerminateAndOrAmendDerivativeInstruments	-10300000	USD
CY2017	wfx	Proceeds Payments To Terminate And Or Amend Derivative Instruments ProceedsPaymentsToTerminateAndOrAmendDerivativeInstruments	-30400000	USD
CY2018Q4	wfx	Derivative Assets Not Designated As Hedging Instruments Net DerivativeAssetsNotDesignatedAsHedgingInstrumentsNet	1818000	USD
CY2017Q4	wfx	Derivative Assets Not Designated As Hedging Instruments Net DerivativeAssetsNotDesignatedAsHedgingInstrumentsNet	818000	USD
CY2018Q4	wfx	Derivative Liabilities Not Designated As Hedging Instruments Net DerivativeLiabilitiesNotDesignatedAsHedgingInstrumentsNet	0	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11600000	USD
CY2017Q4	wfx	Derivative Liabilities Not Designated As Hedging Instruments Net DerivativeLiabilitiesNotDesignatedAsHedgingInstrumentsNet	-1457000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	47931000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	5109000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	0	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	53040000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	12909000	USD
CY2018	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	5145000	USD
CY2018	us-gaap	Equity Securities Fv Ni Unrealized Loss EquitySecuritiesFvNiUnrealizedLoss	407000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	17647000	USD
CY2018Q4	wfx	Marketable Securities Amortized Cost MarketableSecuritiesAmortizedCost	60840000	USD
CY2018Q4	wfx	Marketable Securities Unrealized Gain MarketableSecuritiesUnrealizedGain	10254000	USD
CY2018Q4	wfx	Marketable Securities Unrealized Loss MarketableSecuritiesUnrealizedLoss	407000	USD
CY2018Q4	us-gaap	Marketable Securities MarketableSecurities	70687000	USD
CY2018Q4	us-gaap	Other Investments OtherInvestments	178683000	USD
CY2018Q4	wfx	Investments And Notes Receivables InvestmentsAndNotesReceivables	249370000	USD
CY2017Q4	wfx	Investments And Notes Receivables InvestmentsAndNotesReceivables	240538000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7200000	USD
CY2018	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	800000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	19160000	USD
CY2018	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P81M
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	114290000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	38427000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	30200000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9400000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	7172000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	6925000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	32757000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	29515000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	18761000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	114290000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	147312000	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	3626000	USD
CY2017	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	-4927000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	138759000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	18153000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	156912000	USD
CY2017Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	3600000	USD
CY2017Q4	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	5000000.0	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	344784000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	248051000	USD
CY2018	us-gaap	Depreciation Depreciation	56700000	USD
CY2017	us-gaap	Depreciation Depreciation	30200000	USD
CY2016	us-gaap	Depreciation Depreciation	22400000	USD
CY2018Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	5000000	shares
CY2018Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	2300000	shares
CY2016	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	69091000	USD
CY2016	wfx	Average Price Of Shares Repurchased Per Share AveragePriceOfSharesRepurchasedPerShare	33.90
CY2017	wfx	Average Price Of Shares Repurchased Per Share AveragePriceOfSharesRepurchasedPerShare	46.77
CY2016	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	2038368	shares
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	40909022	shares
CY2018	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	868147	shares
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	45331000	USD
CY2018	wfx	Average Price Of Shares Repurchased Per Share AveragePriceOfSharesRepurchasedPerShare	52.22
CY2017	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	1473054	shares
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	68896000	USD
CY2017	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	41791941	shares
CY2016	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	42669070	shares
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	5.57
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	4.14
CY2016	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	6.02
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	23400000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	18500000	USD
CY2018Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	5200000	USD
CY2018Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	5200000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28421000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28004000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1405000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	145000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2044000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2903000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	915000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5109000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	356000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2401000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2275000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	23445000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28421000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	4900000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	4500000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	400000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	800000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	300000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1976000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	45822000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	65196000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	111302000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1969000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1246000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3019000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-2000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-35000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-13000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	47789000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	66407000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	114308000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	11783000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8270000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	25423000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-883000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6618000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	81000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	108000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-394000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10981000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1544000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	27005000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	58770000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	64863000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	141313000	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
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.024
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.016
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.011
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.019
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.013
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.006
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.010
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.080
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.205
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.273
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.355
CY2017Q4	wfx	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit	-19300000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	16633000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	3246000	USD
CY2018Q4	wfx	Deferred Tax Assets Student Loans DeferredTaxAssetsStudentLoans	15054000	USD
CY2017Q4	wfx	Deferred Tax Assets Student Loans DeferredTaxAssetsStudentLoans	13532000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	3254000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	2246000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2041000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1744000	USD
CY2018Q4	wfx	Deferredtaxassetsecuritizations Deferredtaxassetsecuritizations	2014000	USD
CY2017Q4	wfx	Deferredtaxassetsecuritizations Deferredtaxassetsecuritizations	2970000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	2899000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	38996000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	38996000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	26637000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	527000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	254000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	38469000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	26383000	USD
CY2018Q4	wfx	Deferred Tax Liabilitiesin Partnership Basis DeferredTaxLiabilitiesinPartnershipBasis	47488000	USD
CY2018Q4	wfx	Deferred Tax Liabilities Loan Origination Services DeferredTaxLiabilitiesLoanOriginationServices	6243000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9469000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4958000	USD
CY2017Q4	wfx	Deferred Tax Liabilities Loan Origination Services DeferredTaxLiabilitiesLoanOriginationServices	8001000	USD
CY2018Q4	wfx	Deferred Tax Liabilities Unrealized Gain On Debt And Equity Securities DeferredTaxLiabilitiesUnrealizedGainOnDebtAndEquitySecurities	1363000	USD
CY2017Q4	wfx	Deferred Tax Liabilities Unrealized Gain On Debt And Equity Securities DeferredTaxLiabilitiesUnrealizedGainOnDebtAndEquitySecurities	1767000	USD
CY2017Q4	wfx	Deferred Tax Liabilitiesin Partnership Basis DeferredTaxLiabilitiesinPartnershipBasis	21474000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	22042000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	23051000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	9903000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	0	USD
CY2018Q4	wfx	Deferred Tax Liabilities Debt Repurchases DeferredTaxLiabilitiesDebtRepurchases	0	USD
CY2017Q4	wfx	Deferred Tax Liabilities Debt Repurchases DeferredTaxLiabilitiesDebtRepurchases	3856000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	644000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	823000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	97152000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	63930000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	58683000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	37547000	USD
CY2018Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	6400000	USD
CY2017Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	42400000	USD
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	operating_segment
CY2018	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	924266000	USD
CY2018	us-gaap	Interest Expense InterestExpense	669906000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	254360000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	23000000	USD
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	231360000	USD
CY2018	wfx	Intersegment Servicing Revenue IntersegmentServicingRevenue	0	USD
CY2018	us-gaap	Other Income OtherIncome	54446000	USD
CY2018	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	359000	USD
CY2018	wfx	Derivative Settlements Expense Income DerivativeSettlementsExpenseIncome	70071000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	484538000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	226684000	USD
CY2018	wfx	Derivative Market Value And Foreign Currency Adjustment DerivativeMarketValueAndForeignCurrencyAdjustment	1014000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	832532000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	76492000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	436179000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	86896000	USD
CY2018	wfx	Servicingexpenses Servicingexpenses	12059000	USD
CY2018	us-gaap	Other Expenses OtherExpenses	165972000	USD
CY2018	wfx	Intersegment Expenses IntersegmentExpenses	0	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	701106000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	286294000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	58770000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	227524000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-389000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	227913000	USD
CY2018Q4	us-gaap	Assets Assets	25220968000	USD
CY2017	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	770426000	USD
CY2017	us-gaap	Interest Expense InterestExpense	465188000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	305238000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	14450000	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	290788000	USD
CY2017	wfx	Intersegment Servicing Revenue IntersegmentServicingRevenue	0	USD
CY2017	us-gaap	Other Income OtherIncome	52826000	USD
CY2017	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	2902000	USD
CY2017	wfx	Derivative Settlements Expense Income DerivativeSettlementsExpenseIncome	667000	USD
CY2017	wfx	Derivative Market Value And Foreign Currency Adjustment DerivativeMarketValueAndForeignCurrencyAdjustment	-19221000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	479062000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	58628000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	301885000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	39541000	USD
CY2017	wfx	Servicingexpenses Servicingexpenses	22734000	USD
CY2017	us-gaap	Other Expenses OtherExpenses	120378000	USD
CY2017	wfx	Intersegment Expenses IntersegmentExpenses	0	USD
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CY2016	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	359063000	USD
CY2016	wfx	Intersegment Servicing Revenue IntersegmentServicingRevenue	0	USD
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CY2016	wfx	Derivative Market Value And Foreign Currency Adjustment DerivativeMarketValueAndForeignCurrencyAdjustment	71744000	USD
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CY2016	wfx	Intersegment Expenses IntersegmentExpenses	0	USD
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CY2016	us-gaap	Net Income Loss NetIncomeLoss	256751000	USD
CY2016	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	51182000	USD
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CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	33933000	USD
CY2016	wfx	Servicingexpenses Servicingexpenses	25750000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	398814000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	141313000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	257501000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	750000	USD
CY2016Q4	us-gaap	Assets Assets	27193095000	USD
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	818000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	9181000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	8261000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	5776000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	3745000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	2904000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	5479000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	35346000	USD
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CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	5700000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6000000.0	USD
CY2018Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	5000000	USD
CY2018	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	1
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CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	6200000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5100000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate	0.15
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CY2018Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	70687000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	1818000	USD
CY2018	us-gaap	Share Based Goods And Nonemployee Services Transaction Quantity Of Securities Issued ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued	18709	shares
CY2017	us-gaap	Share Based Goods And Nonemployee Services Transaction Quantity Of Securities Issued ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued	17829	shares
CY2016	us-gaap	Share Based Goods And Nonemployee Services Transaction Quantity Of Securities Issued ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued	24443	shares
CY2018Q4	wfx	Payments To Acquire Additional Asset Ownership PaymentsToAcquireAdditionalAssetOwnership	717500	USD
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CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	72505000	USD
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CY2017Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	81720000	USD
CY2017Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	7063000	USD
CY2017Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	7063000	USD
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	67307000	USD
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CY2018Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	4000000	USD
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CY2018Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	10500000	USD
CY2018Q2	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	0	USD
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CY2018Q4	us-gaap	Other Income OtherIncome	9998000	USD
CY2018Q1	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	359000	USD
CY2018Q4	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	0	USD
CY2018Q1	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	66799000	USD
CY2018Q2	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	17031000	USD
CY2018Q3	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	17098000	USD
CY2018Q4	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	-29843000	USD
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CY2018Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	114172000	USD
CY2018Q4	us-gaap	Labor And Related Expense LaborAndRelatedExpense	114247000	USD
CY2018Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	18457000	USD
CY2018Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	21494000	USD
CY2018Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	22992000	USD
CY2018Q4	us-gaap	Depreciation And Amortization DepreciationAndAmortization	23953000	USD
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CY2018Q2	wfx	Servicingexpenses Servicingexpenses	3204000	USD
CY2018Q3	wfx	Servicingexpenses Servicingexpenses	3087000	USD
CY2018Q4	wfx	Servicingexpenses Servicingexpenses	2631000	USD
CY2018Q1	us-gaap	Other Expenses OtherExpenses	33417000	USD
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CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35976000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	43126000	USD
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CY2018Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4599000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	113185000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	49539000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	49539000	USD
CY2018Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-740000	USD
CY2018Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	104000	USD
CY2018Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	199000	USD
CY2018Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	48000	USD
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CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	42927000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	21626000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	2.78
CY2018Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.21
CY2018Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.05
CY2018Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.53
CY2017Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	76925000	USD
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CY2017Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	75237000	USD
CY2017Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	73235000	USD
CY2017Q1	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1000000	USD
CY2017Q2	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	USD
CY2017Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	6700000	USD
CY2017Q4	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3750000	USD
CY2017Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	75925000	USD
CY2017Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	76842000	USD
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CY2017Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	69485000	USD
CY2017Q2	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	-27910000	USD
CY2017Q1	us-gaap	Other Income OtherIncome	12632000	USD
CY2017Q4	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	-2635000	USD
CY2017Q1	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	-4830000	USD
CY2017Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	74628000	USD
CY2017Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	74193000	USD
CY2017Q2	us-gaap	Other Income OtherIncome	12485000	USD
CY2017Q3	us-gaap	Other Income OtherIncome	19756000	USD
CY2017Q4	us-gaap	Other Income OtherIncome	7952000	USD
CY2017Q1	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	4980000	USD
CY2017Q2	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	442000	USD
CY2017Q3	wfx	Gains On Sale Of Student Loans And Debt Repurchases Net. GainsOnSaleOfStudentLoansAndDebtRepurchasesNet.	116000	USD
CY2017Q3	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	7173000	USD
CY2017Q4	wfx	Derivative Market Value And Foreign Currency Adjustments And Derivative Settlements Net DerivativeMarketValueAndForeignCurrencyAdjustmentsAndDerivativeSettlementsNet	7014000	USD
CY2017Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	71863000	USD
CY2017Q4	us-gaap	Labor And Related Expense LaborAndRelatedExpense	81201000	USD
CY2017Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8598000	USD
CY2017Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	9038000	USD
CY2017Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10051000	USD
CY2017Q4	us-gaap	Depreciation And Amortization DepreciationAndAmortization	11854000	USD
CY2017Q1	wfx	Servicingexpenses Servicingexpenses	6025000	USD
CY2017Q2	wfx	Servicingexpenses Servicingexpenses	5628000	USD
CY2017Q3	wfx	Servicingexpenses Servicingexpenses	8017000	USD
CY2017Q4	wfx	Servicingexpenses Servicingexpenses	3064000	USD
CY2017Q1	us-gaap	Other Expenses OtherExpenses	26161000	USD
CY2017Q2	us-gaap	Other Expenses OtherExpenses	26262000	USD
CY2017Q3	us-gaap	Other Expenses OtherExpenses	29500000	USD
CY2017Q4	us-gaap	Other Expenses OtherExpenses	38455000	USD
CY2017Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28755000	USD
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16032000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25562000	USD
CY2017Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-5486000	USD
CY2017Q1	us-gaap	Profit Loss ProfitLoss	47920000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	24651000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	43535000	USD
CY2017Q4	us-gaap	Profit Loss ProfitLoss	45714000	USD
CY2017Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-2106000	USD
CY2017Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-4086000	USD
CY2017Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-2768000	USD
CY2017Q4	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-2386000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	50026000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	28737000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	46303000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	48100000	USD
CY2017Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.18
CY2017Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.68
CY2017Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.11
CY2017Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.17

Files In Submission

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$NNI
NELNET INC Stock $nni

2018 Form 10-K Financial Statement

#000125860219000022 Filed on February 27, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NNI NELNET INC Stock $nni

2018 Form 10-K Financial Statement

#000125860219000022 Filed on February 27, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NNI
NELNET INC Stock $nni