Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Accumulated Other Comprehensive Income, Net of Related Tax Effects) (Details)

v3.20.4
Accumulated Other Comprehensive Income (Accumulated Other Comprehensive Income, Net of Related Tax Effects) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive income at beginning of period $ (4,425) $ (4,063) $ (8,887)
Other comprehensive income (loss) before reclassifications 16,864 8,789 5,209
Amounts reclassified from other comprehensive income (11,633) (9,052) 130
Net other comprehensive income (loss) during the period 5,231 (263) 5,339
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests   16,555  
Accumulated other comprehensive income at end of period 806 (4,425) (4,063)
Unrealized Holding Gains (Losses) on Available-For-Sale Securities [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive income at beginning of period (4) (60) (4)
Other comprehensive income (loss) before reclassifications 4 56 (56)
Amounts reclassified from other comprehensive income 0 0 0
Net other comprehensive income (loss) during the period 4 56 (56)
Accumulated other comprehensive income at end of period 0 (4) (60)
Unrealized Holding Gains (Losses) on Derivative Transactions [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive income at beginning of period 9,482 11,964 (10,716)
Other comprehensive income (loss) before reclassifications (7,218) 6,669 23,065
Amounts reclassified from other comprehensive income (11,633) (9,052) 130
Net other comprehensive income (loss) during the period (18,851) (2,383) 23,195
Accumulated other comprehensive income at end of period (9,369) 9,482 11,964
Foreign Currency Translation Adjustment [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive income at beginning of period (13,903) (15,967) 1,833
Other comprehensive income (loss) before reclassifications 24,078 2,064 (17,800)
Amounts reclassified from other comprehensive income 0 0 0
Net other comprehensive income (loss) during the period 24,078 2,064 (17,800)
Accumulated other comprehensive income at end of period $ 10,175 (13,903) (15,967)
Accumulated Other Comprehensive Income (Loss)      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests   99  
Accounting Standards Update 2017-12 [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Revision of Prior Period [Domain]     (515)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests   99  
Accounting Standards Update 2017-12 [Member] | Unrealized Holding Gains (Losses) on Available-For-Sale Securities [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Revision of Prior Period [Domain]     0
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests   0  
Accounting Standards Update 2017-12 [Member] | Unrealized Holding Gains (Losses) on Derivative Transactions [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Revision of Prior Period [Domain]     (515)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests   99  
Accounting Standards Update 2017-12 [Member] | Foreign Currency Translation Adjustment [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Revision of Prior Period [Domain]     $ 0
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests   $ 0