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Derivative Instruments, Hedging Activities and Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Average cap interest rate (as percent)	4.20%
Interest rate fair value hedge liability at fair value	$ 32,100	$ 16,800
Gain (loss) reclassified to earnings	(4,000)	600
Gain (loss) reclassified to earnings			$ 800
Interest expense	50,399	59,268	$ 66,785
Increase as Hedged Forecasted Interest Payments Occur
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest expense	6,400
Accrued Interest
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate fair value hedge liability at fair value	400	$ 100
Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 250,000

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Average cap rate on a group of interest rate derivatives, such as interest rate caps or collars. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Nominal or face amount used to calculate payment on derivative.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Fair value as of the balance sheet date of all derivative liabilities designated as interest rate fair value hedging instruments.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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