Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest income
Loans and leases	$ 222,682	$ 164,108	$ 433,544	$ 325,142
Investment securities:
Total investment securities interest and dividend income	21,806	12,447	41,116	24,195
Overnight investments	1,525	756	2,863	1,368
Total interest income	246,013	177,311	477,523	350,705
Interest expense
Deposits	5,534	6,006	11,163	12,831
Short-term borrowings	1,658	1,551	3,592	2,136
Long-term obligations	4,171	4,056	7,953	9,109
Total interest expense	11,363	11,613	22,708	24,076
Net interest income	234,650	165,698	454,815	326,629
Provision (credit) for loan and lease losses	7,719	(7,299)	13,511	(9,202)
Net interest income after provision for loan and lease losses	226,931	172,997	441,304	335,831
Noninterest income
Gain on acquisition	0	0	42,930	0
Cardholder services	19,214	13,257	37,615	25,089
Merchant services	22,070	15,035	40,950	28,556
Service charges on deposit accounts	22,361	15,265	44,419	29,705
Wealth management services	21,555	15,815	42,435	30,695
Fees and Commissions, Correspondent Clearing	45	5,682	95	10,543
Securities gains (losses)	147	0	5,273	0
Other service charges and fees	5,685	4,250	11,140	8,194
Mortgage income	5,571	1,210	10,120	2,165
Insurance commissions	2,456	2,253	5,753	5,540
ATM income	1,825	1,260	3,489	2,462
Adjustments for FDIC receivable for loss share agreements	(4,553)	(15,295)	(5,600)	(27,644)
Other	11,074	7,857	19,584	13,598
Total noninterest income	107,450	66,589	258,203	128,903
Noninterest expense
Salaries and wages	110,685	81,839	217,228	161,192
Employee benefits	27,212	19,741	57,358	39,841
Occupancy expense	25,532	20,300	51,152	40,710
Equipment expense	23,296	19,581	46,837	38,354
FDIC insurance expense	4,551	2,640	8,822	5,276
Foreclosure-related expenses	1,019	3,858	3,576	9,268
Merger-related expenses	4,573	3,450	7,570	5,903
Other	67,823	47,611	130,314	89,506
Total noninterest expense	264,691	199,020	522,857	390,050
Income before income taxes	69,690	40,566	176,650	74,684
Income taxes	25,168	13,880	64,970	25,519
Net income	$ 44,522	$ 26,686	$ 111,680	$ 49,165
Average shares outstanding (in shares)	12,010,405	9,618,941	12,010,405	9,618,941
Net income per share	$ 3.71	$ 2.77	$ 9.30	$ 5.11