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Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Stockholders equity $ 1,113,785 $ 1,160,069 $ 1,237,960 $ 1,321,197 $ 1,009,471 $ 1,064,115
Unrealized gains on available-for-sale securities            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Stockholders equity 3,931   2,756      
Unrealized losses on cash flow hedges            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Stockholders equity (58,777)   (37,264)      
Unrealized losses on cumulative translation adjustment            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Stockholders equity (4,199)   (4,199)      
Accumulated other comprehensive loss            
Accumulated Other Comprehensive Income (Loss) [Line Items]            
Stockholders equity $ (59,045) $ (59,522) $ (38,707) $ (34,137) $ (29,594) $ (17,270)