COMPREHENSIVE (LOSS) INCOME (Reclassification Adjustment from AOCI) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013		Sep. 30, 2014	Sep. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest (expense)	$ (5,916)	$ (5,316)	[1]	$ (16,440)	$ (15,081)	[1]
Tax (expense) or benefit	(1,736)	6,352	[1]	(5,866)	9,172	[1]
Net income (loss)	9,807	(30,330)	[1]	16,838	(34,838)	[1]
Reclassification out of Accumulated Other Comprehensive Income | Gains and Losses on Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax (expense) or benefit	192			571
Net income (loss)	(241)			(757)
Reclassification out of Accumulated Other Comprehensive Income | Gains and Losses on Cash Flow Hedges | Interest Rate Swap [member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest (expense)	$ (433)			$ (1,328)

[1] See Note 1 of these condensed consolidated financial statements for discussion of the impact of the change in accounting for the medical device excise tax.