Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Derivative financial instruments (Income (loss) recorded in comprehensive income) (Details)

v3.21.2
Derivative financial instruments (Income (loss) recorded in comprehensive income) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]        
Income tax effect $ (2,274) $ 795 $ (5,339) $ 12,366
Net change in fair value of derivatives, net of tax 15,920 (5,565) 37,372 (86,559)
Interest rate swaps        
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion of change in fair market value of derivatives 17,656 (5,904) 39,943 (93,682)
Interest rate caps        
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion of change in fair market value of derivatives (323) (456) 1,142 (5,243)
Derivative Premium And Amortization        
Derivative Instruments, Gain (Loss) [Line Items]        
Effective portion of change in fair market value of derivatives $ 861 $ 0 $ 1,626 $ 0