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	$ 85,846,000	$ 74,335,000
Additions for tax positions of the current year	474,000	7,464,000
Additions for tax positions of prior years	35,862,000	6,787,000
Reductions of tax positions of prior years:
Changes in judgment	(10,548,000)	(2,740,000)
Balance, end of period	111,634,000	85,846,000
Possible reduction in unrecognized tax benefits due to expected closure of appeals process	$ 7,500,000