CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME [Abstract]
Net (loss) income	$ (42,572)	$ (35,431)	$ 10,381
Other comprehensive income:
Net change in unrealized loss on auction rate securities	68	8	24
Total other comprehensive income	68	8	24
Comprehensive (loss) income	$ (42,504)	$ (35,423)	$ 10,405