Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

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The premium (cost) of a hedge, expensed during the period.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Nominal or face amount used to calculate payments on the derivative liability.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The face amount of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

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No definition available.

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Aggregate loss on all derivative instruments charged against earnings during the period, before tax effects.

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Derivatives and Hedging Activities - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Mar. 31, 2020	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest Rate Lock Commitments
Interest rate swap derivative financial instruments
Off-balance sheet commitments			$ 229,862	$ 84,803
Interest Rate Lock Commitments \| Prepaid Expenses and Other Current Assets
Interest rate swap derivative financial instruments
Gross amounts of recognized assets			8,605	1,852
Interest Rate Cap
Interest rate swap derivative financial instruments
Forecasted notional amount	$ 130,500
Derivative, term of contract	5 years
Interest rate expense recorded on interest rate swap			126
Interest Rate Cap \| Prepaid Expenses and Other Current Assets
Interest rate swap derivative financial instruments
Gross amounts of recognized assets			201
Interest Rate Cap \| Minimum Range
Interest rate swap derivative financial instruments
Derivative, cap interest rate	1.50%
Interest Rate Cap \| Maximum Range
Interest rate swap derivative financial instruments
Derivative, cap interest rate	2.00%
Interest Rate Swaps
Interest rate swap derivative financial instruments
Forecasted notional amount		$ 260,000
Interest rate expense recorded on interest rate swap			0	5,532	$ 8,013
Loss on termination of interest rate swaps		$ 9,997
Forward commitments to sell TBA securities
Interest rate swap derivative financial instruments
Forecasted notional amount			206,000	82,000
Forward commitments to sell TBA securities \| Other Liabilities
Interest rate swap derivative financial instruments
Derivative asset, fair value, gross liability			$ 2,056	$ 236