Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Derivative Instruments

Schedule of fair value of derivatives by contract type

	Derivatives
		Fair Value
Derivatives Designated as Hedging Instruments	Balance Sheet Location	March 31, 2013		December 31, 2012
		(in thousands)
Interest rate contracts	Liabilities under derivative instruments	$	1,218	$	1,690

Schedule of income effects of cash flow hedging relationships

		Amount of Loss Recognized on Derivatives in the Statements of Income
Derivatives in Cash Flow	Location of Loss Recognized on Derivatives in	Three Months Ended March 31,
Hedging Relationships	the Statements of Income	2013		2012
		(in thousands)
Interest rate contracts	Interest expense	$	366	$	2,448
Total		$	366	$	2,448

Schedule of information about financial statement effects related to cash flow hedges

	Amount of Gain Recognized in OCI on Derivatives (Effective Portion)				Location of Loss Reclassified	Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)
Derivatives in Cash Flow	Three Months Ended March 31,				from Accumulated OCI into Income	Three Months Ended March 31,
Hedging Relationships	2013		2012		(Effective Portion)	2013			2012
	(in thousands)					(in thousands)
Interest rate contracts*	$	472	$	202	Interest expense	$	(366	)	$	(2,448	)
Total	$	472	$	202	Total	$	(366	)	$	(2,448	)

* These amounts are shown net of $0.5 million and $2.5 million of other comprehensive income reclassified to the income statement during the three months ended March 31, 2013 and 2012, respectively.