Derivatives and Hedging Activities - Cash Flow Hedge on Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Interest Income \| Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate swap, net of income taxes	$ 2,003	$ 1,556

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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