Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Loss) (Details)

v3.10.0.1
Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 1,843,623 $ 2,046,433
Ending balance 1,791,291 1,843,623
Foreign currency translation    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (5,404) (28,128)
Other comprehensive income (loss) before reclassifications (14,727) 22,724
Reclassification adjustment due to adoption of ASU 2016-01 0 0
Net other comprehensive income (loss) (14,727) 22,724
Ending balance (20,131) (5,404)
Unrealized gain (loss) in Accumulated OCI    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 4,876 1,119
Other comprehensive income (loss) before reclassifications 0 3,790
Reclassification adjustment due to adoption of ASU 2016-01 (4,876) (33)
Net other comprehensive income (loss) (4,876) 3,757
Ending balance 0 4,876
Total    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (528) (27,009)
Other comprehensive income (loss) before reclassifications (14,727) 26,514
Reclassification adjustment due to adoption of ASU 2016-01 (4,876) (33)
Net other comprehensive income (loss) (19,603) 26,481
Ending balance $ (20,131) $ (528)