Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Provision for Income Taxes Charged to Operations) (Details)

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INCOME TAXES (Provision for Income Taxes Charged to Operations) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Current tax expense $ 12,114 $ 27,255 $ 25,578
Deferred tax expense (benefit) 17,902 5,535 366
Income tax expense $ 30,016 $ 32,790 $ 25,944