INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Gross deferred tax assets	$ 375,092	$ 359,261
Unrecognized tax benefits for uncertain tax positions	(879)	0
Valuation allowance	(43,380)	(43,380)
Deferred tax assets, net of valuation allowance	330,833	315,881
Deferred tax liabilities	49,609	28,397
Net deferred tax assets	$ 281,224	$ 287,484