INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income tax expense	$ 11,308	$ 9,284	$ 21,186	$ 17,734
Effective tax rate	33.40%	32.90%	33.30%	32.70%