INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income tax expense	$ 11,199	$ 10,125	$ 32,884	$ 31,311
Effective tax rate	31.10%	30.70%	31.40%	32.40%
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	$ 200		$ 1,400
Unrecognized Tax Benefits that Would Impact Effective Tax Rate					$ 2,400