Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
INTEREST INCOME:
Mortgage and other loans	$ 1,441,462		$ 1,414,884		$ 1,487,662
Securities and money market investments	250,122		268,183		220,436
Total interest income	1,691,584		1,683,067		1,708,098
INTEREST EXPENSE:
NOW and money market accounts	46,467		39,508		35,884
Savings accounts	50,776		35,727		21,950
Certificates of deposit	62,906		74,511		83,805
Borrowed funds	1,123,360		392,968		399,843
Total interest expense	1,283,509		542,714		541,482
Net interest income	408,075		1,140,353		1,166,616
(Recovery of) provision for losses	(15,004)		(18,587)		30,758
Net interest income after (recoveries of) provisions for loan losses	423,079		1,158,940		1,135,858
NON-INTEREST INCOME:
Total loss on OTTI of securities					(612)
Less: Non-credit portion of OTTI recorded in other comprehensive (loss) income (before taxes)	0		0		0
Net loss on OTTI recognized in earnings					(612)
Mortgage banking income	54,113		62,953		78,283
Fee income	34,058		36,585		38,179
Bank-owned life insurance	27,541		27,150		29,938
Net gain on sales of securities	4,054		14,029		21,036
FDIC indemnification (expense) income	(9,336)		(14,870)		10,206
Other	100,333		75,746		41,800
Total non-interest income	210,763	[1]	201,593	[1]	218,830
Operating expenses:
Compensation and benefits	342,624		306,848		313,196
Occupancy and equipment	102,435		99,016		97,252
General and administrative	170,541		173,306		181,330
Total operating expenses	615,600		579,170		591,778
Amortization of core deposit intangibles	5,344		8,297		15,784
Debt repositioning charge	141,209
Merger-related expenses	3,702
Total non-interest expense	765,855	[2]	587,467	[2]	607,562
(Loss) Income before income tax expense	(132,013)		773,066		747,126
Income tax (benefit) expense	(84,857)		287,669		271,579
Net (Loss) income	(47,156)		485,397		475,547
Other comprehensive (loss) income, net of tax:
Change in net unrealized gain (loss) on securities available for sale, net of tax of $437; $4,343; and $4,765, respectively	475		6,407		(7,043)
Change in the non-credit portion of OTTI losses recognized in other comprehensive (loss) income, net of tax of $44; $142; and $5,028, respectively	69		217		7,921
Change in pension and post-retirement obligations, net of tax of $1,161; $14,992; and $20,116, respectively	(1,445)		(22,123)		29,628
Less: Reclassification adjustment for sales of available-for-sale securities and loss on OTTI of securities, net of tax of $306; $2,492; and $3,578, respectively	(434)		(3,694)		(5,294)
Total other comprehensive (loss) income, net of tax	(1,335)		(19,193)		25,212
Total comprehensive (loss) income, net of tax	$ (48,491)		$ 466,204		$ 500,759
Basic (loss) earnings per share	$ (0.11)		$ 1.09		$ 1.08
Diluted (loss) earnings per share	$ (0.11)		$ 1.09		$ 1.08
Non-Covered Loans
INTEREST EXPENSE:
(Recovery of) provision for losses	$ (3,334)				$ 18,000
Covered Loans
INTEREST EXPENSE:
(Recovery of) provision for losses	$ (11,670)		$ (18,587)		$ 12,758

[1] Includes ancillary fee income.

[2] Includes both direct and indirect expenses.