Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Reconciliation of Income Tax from Statutory Rates to Income Tax Expense (Benefit)) (Details)

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INCOME TAXES (Reconciliation of Income Tax from Statutory Rates to Income Tax Expense (Benefit)) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Income tax expense (benefit) at United States statutory rates $ 16,914 $ 2,223 $ (34,937)
State income taxes, net of federal tax benefits 3,264 3,959 7,548
Differences between foreign and United States statutory rates (11,116) (5,356) (10,735)
Non-United States income inclusions and exclusions (1,678) 1,206 (284)
United States income inclusions and exclusions (1,317) 2,095 (1,396)
Nondeductible items 3,210 4,736 55,469
Tax contingencies 2,390 2,063 950
Tax expense from acquired goodwill 5,936 4,483 1,299
Tax return to accrual (1,071) (551) (7,013)
Change in valuation allowance 11,820 7,116 (7,467)
Other, net (323) 148 1,196
Income tax expense (benefit) $ 28,029 $ 22,122 $ 4,630