Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income, Net of Tax (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
AOCI Attributable to Parent, Net of Tax      
Beginning balance $ 805,936 $ 1,364,335 $ 1,321,160
Accumulated other comprehensive income, ending balance 47,508 29,198  
Ending balance 556,771 805,936 1,364,335
Foreign Currency Translation Adjustment      
AOCI Attributable to Parent, Net of Tax      
Beginning balance 29,198 26,745 38,892
(Loss) income recognized in other comprehensive income (loss) 3,151 2,453 (9,370)
(Income) loss reclassified from accumulated other comprehensive income 15,159   (2,777)
Ending balance 47,508 $ 29,198 26,745
Disposed of by sale | Belleli CPE | Foreign Currency Translation Adjustment      
AOCI Attributable to Parent, Net of Tax      
(Income) loss reclassified from accumulated other comprehensive income $ 15,200    
Australia | Foreign Currency Translation Adjustment      
AOCI Attributable to Parent, Net of Tax      
(Income) loss reclassified from accumulated other comprehensive income     $ (2,800)