XML 64 R53.htm IDEA: XBRL DOCUMENT v3.7.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Valuation Allowance [Line Items]      
Deferred Tax Assets, Gross $ 221,100    
Deferred Tax Assets, Valuation Allowance 25,900    
Provision for (benefit from) income taxes 7,376 $ 4,517  
Unrecognized tax benefits 23,100   $ 21,900
Portion of unrecognized tax benefits, which if recognized, would be recorded as an income tax benefit 2,400    
Unrecognized tax benefits included in long-term income taxes payable 2,400   2,200
Unrecognized tax benefits, reduction of long-term deferred tax assets 20,700   $ 19,700
Foreign Tax Authority [Member]      
Valuation Allowance [Line Items]      
Income Taxes Paid $ 5,500 $ 5,500