ACCUMULATED OTHER COMPREHENSIVE LOSS (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income	$ (3,308)
Unrealized holding gains on available-for-sale investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income	$ (3,308)

Amount after tax of reclassification adjustments of other comprehensive income (loss).

No definition available.

Name:	us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration