Derivatives and Hedging Activities (Tables) (Not Designated as Hedging Instrument [Member])

3 Months Ended

Mar. 31, 2012

Not Designated as Hedging Instrument [Member]

Derivative [Line Items]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The following table presents the fair value of derivative instruments at March 31, 2012 and 2011:

	Asset Derivatives						Liability Derivatives
As of March 31,	2012			2011			2012			2011
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
	(in thousands)
Derivatives not designated as hedging instruments
Interest rate contracts	Other assets	$	14,950	Other assets	$	9,050	Other liabilities	$	14,950	Other liabilities	$	9,050