INCOME TAXES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]
Income taxes	$ 32,953	$ 33,588	$ 96,532	$ 91,431
Pre-tax income	77,785	97,840	275,077	295,053
Effective income tax rate (as a percent)			35.10%	31.00%
Unrecognized tax benefits	20,823		20,823
Unrecognized tax benefits that, if recognized, would be reflected as a component of income tax expense	11,481		11,481
Reasonably possible reduction in prior years' unrecognized tax benefits during the next twelve months	(3,436)		(3,436)
Tax deposit	$ 79,967		$ 79,967
Rate of interest to be earned on tax deposit upon favorable outcome	1.00%		1.00%