Annual report pursuant to Section 13 and 15(d)

Income Taxes Components of Income Tax Provision (Benefit) (Details)

v3.8.0.1
Income Taxes Components of Income Tax Provision (Benefit) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]      
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount $ 813 $ (802) $ 96
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount 1,993 (1,204) 600
Current Federal Tax Expense (Benefit) 13,470 1,216 0
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)