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, 2015
Dec. 31, 2014
Dec. 31, 2013
Effective Income Tax Rate Reconciliation, Amount [Abstract]      
Income tax expense (benefit) at United States statutory rates $ 2,223 $ (34,937) $ (1,798)
State income taxes, net of federal tax benefits 3,959 7,548 2,604
Differences between foreign and United States statutory rates (5,356) (10,735) (21,182)
Non-United States income inclusions and exclusions 1,206 (284) 15,352
United States income inclusions and exclusions 2,095 (1,396) 4,881
Nondeductible items 4,736 55,469 7,359
Tax contingencies 2,063 950 697
Tax expense from acquired goodwill 4,483 1,299 913
Tax return to accrual (551) (7,013) 4,350
Change in valuation allowance 7,116 (7,467) 14,999
Other, net 148 1,196 2,703
Income tax expense (benefit) $ 22,122 $ 4,630 $ 30,878