Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest Income:
Mortgage and other loans		$ 370,482	$ 357,999	$ 731,205	$ 722,503
Securities and money market investments		49,133	63,621	112,220	128,030
Total interest income		419,615	421,620	843,425	850,533
Interest Expense:
NOW and money market accounts		15,286	11,727	29,905	22,779
Savings accounts		7,354	12,925	17,562	25,258
Certificates of deposit		18,738	15,729	34,628	32,845
Borrowed funds		52,664	96,142	107,891	191,786
Total interest expense		94,042	136,523	189,986	272,668
Net interest income		325,573	285,097	653,439	577,865
Provision for (recovery of) losses		895	334	719	341
Net interest income after provisions for (recoveries of) loan losses		324,678	284,763	652,720	577,524
Non-Interest Income:
Mortgage banking income		6,957	15,968	11,095	34,374
Fee income		7,917	8,778	15,840	17,172
Bank-owned life insurance		6,843	6,774	16,179	13,478
Net gain on sales of loans		5,878	8,757	11,653	14,703
Net gain on sales of securities		13	592	176	803
FDIC indemnification (expense) income		(1,479)	1,764	(3,797)	2,466
Other income		11,237	19,268	21,457	31,139
Total non-interest income	[1]	37,366	61,901	72,603	114,135
Operating expenses:
Compensation and benefits		85,847	83,067	175,151	170,276
Occupancy and equipment		23,675	25,941	49,490	51,240
General and administrative		49,533	41,577	90,803	84,321
Total operating expenses		159,055	150,585	315,444	305,837
Amortization of core deposit intangibles		606	1,345	1,452	2,929
Merger-related expenses		1,250		2,463
Total non-interest expense	[2]	160,911	151,930	319,359	308,766
Income before income taxes		201,133	194,734	405,964	382,893
Income tax expense		74,673	71,030	149,595	139,930
Net income		126,460	123,704	256,369	242,963
Other comprehensive income (loss), net of tax:
Change in net unrealized gain/loss on securities available for sale, net of tax of $836; $1,294; $1,582; and $133, respectively		1,180	(2,098)	2,242	(383)
Change in the non-credit portion of OTTI losses recognized in other comprehensive income (loss), net of tax of $12; $11; $24; and $22, respectively		19	17	38	34
Change in pension and post-retirement obligations, net of tax of $946; $915; $1,891; and $1,759, respectively		1,335	1,177	2,671	2,425
Total other comprehensive income, net of tax		2,534	(904)	4,951	2,076
Total comprehensive income, net of tax		$ 128,994	$ 122,800	$ 261,320	$ 245,039
Basic earnings per share		$ 0.26	$ 0.28	$ 0.52	$ 0.55
Diluted earnings per share		$ 0.26	$ 0.28	$ 0.52	$ 0.55
Non-Covered Loans
Interest Expense:
Provision for (recovery of) losses		$ 2,744	$ (1,872)	$ 5,465	$ (2,742)
Covered Loans
Interest Expense:
Provision for (recovery of) losses		$ (1,849)	$ 2,206	$ (4,746)	$ 3,083

[1] Includes ancillary fee income.

[2] Includes both direct and indirect expenses.