INCOME TAXES (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Reconciliation of the beginning and ending amount of unrecognized tax benefits
Balance, beginning of period	$ 105,881,000	$ 75,292,000
Additions for tax positions of the current year	474,000	7,465,000
Additions for tax positions of prior years	39,880,000	26,386,000
Reductions of tax positions of prior years:
Changes in judgment	(10,548,000)	(2,740,000)
Lapses of applicable statute of limitations		(522,000)
Balance, end of period	135,687,000	105,881,000
Possible reduction in unrecognized tax benefits due to expected closure of Appeals process	$ 18,500,000