INCOME TAXES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Income tax expense	$ 7,961	$ 6,455	$ 15,042	$ 12,806
Effective tax rate	33.30%	29.00%	32.60%	30.20%