Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.8.0.1
Income Taxes (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]        
Provision for income tax $ 17,203,000 $ 1,032,000 $ 15,597,000 $ 7,605,000
Effective income tax rate 198.00% 7.20% 650.40% 19.00%
Statutory tax rate     35.00%  
Valuation allowance established against deferred tax asset $ 11,400,000      
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations     $ 300,000  
Worldwide pre-tax (losses) income 8,690,000 $ 14,345,000 2,399,000 $ 39,966,000
Minimum        
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]        
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit 0   0  
Maximum        
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]        
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit $ 1,200,000   $ 1,200,000