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Debt - Interest Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]      
Amortization of deferred financing costs $ 4,416 $ 4,100 $ 3,504
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments (376) 376 0
Total interest expense 100,169 91,295 101,643
Senior Notes      
Debt Instrument [Line Items]      
Interest expense 23,767 23,793 28,428
Revolver and Term Loans      
Debt Instrument [Line Items]      
Interest expense 55,413 42,272 43,458
Mortgage loans      
Debt Instrument [Line Items]      
Interest expense $ 16,949 $ 20,754 $ 26,253