Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Note [Abstract]

Accumulated Other Comprehensive Income (Loss)

A rollforward of the components of accumulated other comprehensive income (loss) is included as follows (in thousands):
	Unrealized Gain (Loss) on
	Available for Sale Securities			Investment Securities Transferred from AFS			Employee Benefit Plans			Loss on Effective Cash Flow Hedges			Total
Balance, December 31, 2010	$	122,494		$	—		$	(13,777	)	$	(878	)	$	107,839
Net change in unrealized gains (losses)	97,753			—			—			—			97,753
Other-than-temporary impairment losses recognized in earnings	20,723			—			—			—			20,723
Transfer of net unrealized gain from AFS to investment securities	(12,999		)	12,999			—			—			—
Reclassification adjustment for net (gains) losses realized and included in earnings	(27,064		)	—			—			230			(26,834		)
Income tax expense (benefit)	(30,764		)	(5,057		)	—			(89		)	(35,910		)
Balance, September 30, 2011	$	170,143		$	7,942		$	(13,777	)	$	(737	)	$	163,571
Balance, December 31, 2011	$	135,740		$	6,673		$	(12,742	)	$	(692	)	$	128,979
Net change in unrealized gains (losses)	86,390			—			(292		)	—			86,098
Other-than-temporary impairment losses recognized in earnings	5,684			—			—			—			5,684
Amortization of unrealized gain on investments securities transferred from AFS	—			(5,430		)	—			—			(5,430		)
Reclassification adjustment for net(gains) losses realized and included in earnings	(32,779		)	—			—			399			(32,380		)
Income tax benefit (expense)	(23,066		)	2,550			113			(155		)	(20,558		)
Balance, September 30, 2012	$	171,969		$	3,793		$	(12,921	)	$	(448	)	$	162,393