Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2011

Derivative Instruments [Abstract]

Fair values of derivative instruments designated as hedging instruments

		Fair Value 1
		September 30		December 31		September 30
in thousands	Balance Sheet Location	2011		2010		2010
Liabilities
Interest rate swaps	Other current liabilities		$0		$0		$3,044
Total hedging instrument liabilities			$0		$0		$3,044

Effects of changes in the fair values of derivatives designated as cash flow hedges on the accompanying Condensed Consolidated Statements of Comprehensive Income

		Three Months Ended						Nine Months Ended
	Location on	September 30						September 30
in thousands	Statement	2011			2010			2011			2010
Cash Flow Hedges
Loss recognized in OCI (effective portion)	OCI		$0			($307	)		$0			($881	)
Loss reclassified from AOCI	Interest
(effective portion)	expense		(1,519	)		(4,799	)		(10,191	)		(14,695	)