Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2011

Derivative Instruments [Abstract]

Fair values of derivative instruments designated as hedging instruments

		Fair Value1
		June 30		December 31		June 30
in thousands	Balance Sheet Location	2011		2010		2010
Liabilities
Interest rate swaps	Other current liabilities		$0		$0		$5,614
Interest rate swaps	Other noncurrent liabilities		7,419		0		0
Total hedging instrument liabilities			$7,419		$0		$5,614

   ¹ See Note 7 for further discussion of the fair value determination.

Effects of cash flow and fair value hedge derivative instruments on the accompanying Condensed Consolidated Statements of Comprehensive Income

		Three Months Ended						Six Months Ended
	Location on	June 30						June 30
in thousands	Statements	2011			2010			2011			2010
Cash Flow Hedges
Gain (loss) recognized in OCI (effective portion)	OCI		$0			$234			$0			($574	)
Gain (loss) reclassified from
Accumulated OCI	Interest
(effective portion)	expense		(6,678	)		(4,997	)		(8,672	)		(9,895)

		Three Months Ended					Six Months Ended
	Location on	June 30					June 30
in thousands	Statements	2011			2010		2011			2010
Fair Value Hedges
Gain (loss) recognized in income	Interest
- Interest rate swaps	expense		($7,419	)		$0		($7,419	)		$0
Gain (loss) recognized in income	Interest
- Fixed rate debt	expense		7,419			0		7,419			0