Annual report pursuant to Section 13 and 15(d)

Income Taxes Components of Deferred Income Tax Asset (Details)

v3.8.0.1
Income Taxes Components of Deferred Income Tax Asset (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Valuation Allowance [Line Items]      
Current Federal Tax Expense (Benefit) $ 13,470 $ 1,216 $ 0
Deferred Tax Assets, Operating Loss Carryforwards 77,355 19,524  
Deferred Tax Assets, Tax Credit Carryforwards, Research 69,668 58,170  
Deferred Tax Assets, Other 10,506 13,387  
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost 2,444 2,073  
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost 2,659 3,451  
Deferred Tax Assets, Goodwill and Intangible Assets 0 8,575  
Deferred Tax Assets, Gross 162,632 105,180  
Deferred Tax Assets, Valuation Allowance (84,560) (100,284)  
Deferred Tax Assets, Net of Valuation Allowance 78,072 4,896  
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount 17 (13) 275
Deferred Tax Liabilities, Other Finite-Lived Assets (1,777) (2,202)  
Deferred Tax Liabilities, Intangible Assets (35,981) 0  
Deferred Tax Liabilities, Undistributed Foreign Earnings (436) (2,909)  
Deferred Tax Liabilities, Net 39,878    
Deferred Tax Assets, Net   (215)  
Current State and Local Tax Expense (Benefit) 26 (11) 16
Current Foreign Tax Expense (Benefit) 1,784 1,092 942
Current Income Tax Expense (Benefit) 15,280 2,297 958
Deferred Federal Income Tax Expense (Benefit) 19,451 17,492 (13,759)
Deferred State and Local Income Tax Expense (Benefit) (4,668) (8,271) (1,034)
Deferred Foreign Income Tax Expense (Benefit) (3,697) (2,459) 126
Valuation Allowance, Deferred Tax Asset, Release due to Acquisition, amount 0 0 1,757
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 51,177 6,661 (14,891)
Deferred Income Taxes Expense Benefit (40,091) 101 (1,533)
Income tax provision (benefit) (24,811) $ 2,398 $ (575)
Foreign Tax Authority [Member]      
Valuation Allowance [Line Items]      
Deferred Tax Assets, Other Tax Carryforwards $ 22,000