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Income Taxes - Tax Provision and Reconciliation of Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current tax (benefit) expense      
Federal $ 8,721 $ (5,158) $ 14,275
State 3,489 133 5,821
Foreign (9,639) 3,713 7,515
Total current 2,571 (1,312) 27,611
Deferred tax expense      
Federal 5,457 51,817 2,357
State 3,279 5,419 551
Total deferred 8,736 57,236 2,908
Total income tax provision (benefit) $ 11,307 $ 55,924 $ 30,519
Reconciliation of the statutory federal income tax rate to the actual effective income tax rate      
Federal taxes (as a percent) 35.00% 35.00% 35.00%
State and local income taxes (as a percent) 1.20% 6.10% 1.60%
Permanent differences (as a percent) (0.60%) 5.80% (20.90%)
Foreign (as a percent) (8.50%) 5.20% (2.20%)
Valuation allowance (as a percent) (17.10%) 55.30% (31.10%)
Other miscellaneous items (as a percent) (0.60%) (8.60%) (2.30%)
Actual effective income tax rate (as a percent) 9.40% 98.80% (19.90%)
Amount of pretax income      
Federal taxes $ 42,216 $ 19,814 $ (53,656)
State and local income taxes 1,498 3,435 (2,470)
Permanent differences (690) 3,276 32,019
Foreign (10,268) 2,955 3,337
Valuation allowance (20,675) 31,288 47,703
Other miscellaneous items (774) (4,844) 3,586
Total income tax provision (benefit) 11,307 55,924 30,519
Reconciliation of liability for unrecognized tax benefits      
Balance at the beginning of the period 2,198 7,036  
Additions based on current year positions   561  
Additions based on prior year positions 3,749 6,371  
Settlement payments (4,000) (4,000)  
Unrecognized tax benefits   33,569 44,477
Cumulative advance deposits on account   (31,371) (37,441)
Decreases due to settlements and/or reduction in reserve (9,091) (4,743)  
Currency translation adjustments 2,565    
Currency translation adjustments   (9,097)  
Balance at the end of the period 26,792 $ 2,198 $ 7,036
Settlement payments 10,300    
Income taxes receivable 26,900    
Other Liabilities      
Reconciliation of liability for unrecognized tax benefits      
Balance at the end of the period 26,800    
U.S. | Other current assets      
Reconciliation of liability for unrecognized tax benefits      
Income taxes receivable 12,000    
Canada | Other current assets      
Reconciliation of liability for unrecognized tax benefits      
Income taxes receivable $ 23,000