INCOME TAXES (Deferred Tax Asset Valuation Allowance Rollforward) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Balance, beginning of year	$ 391,629	$ 370,125	$ 295,067
Reversal of deferred tax asset valuation allowance to provision for income taxes	(643)	(115)	(1,189)
(Decrease) increase in deferred tax asset valuation allowance to provision for income taxes	(468)	31,621	73,928
(Decrease) increase in deferred tax asset valuation allowance to accumulated other comprehensive income (loss)	(14,294)	(10,002)	2,319
Balance, end of year	$ 376,224	$ 391,629	$ 370,125