Interim Consolidated Statements of Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	[1]	Jun. 30, 2014
Interest income:
Loans		$ 167,252	$ 147,680	$ 332,753		$ 295,852
Investment securities:
Taxable		84,613	63,424	165,887		117,844
Non-taxable		741	794	1,513		1,590
Federal funds sold, securities purchased under agreements to resell and other short-term investment securities		1,320	1,943	2,589		3,579
Total interest income		253,926	213,841	502,742		418,865
Interest expense:
Deposits		1,182	3,068	3,125		5,972
Borrowings		8,973	5,808	16,921		11,600
Total interest expense		10,155	8,876	20,046		17,572
Net interest income		243,771	204,965	482,696		401,293
Provision for loan losses		26,513	1,947	32,965		2,441
Net interest income after provision for loan losses		217,258	203,018	449,731		398,852
Noninterest income:
Gains (losses) on investment securities, net		24,975	(57,320)	58,238		166,592
Gains on derivative instruments, net		16,317	12,775	56,046		36,942
Foreign exchange fees		22,364	17,928	40,042		35,124
Credit card fees		14,215	10,249	26,305		20,531
Deposit service charges		11,301	9,611	22,037		19,218
Lending related fees		8,163	5,876	16,185		12,179
Letters of credit and standby letters of credit fees		4,772	2,810	9,974		6,950
Client investment fees		5,264	3,519	9,746		6,937
Other		18,916	8,762	11,238		19,962
Total noninterest income		126,287	14,210	249,811		324,435
Noninterest expense:
Compensation and benefits		124,915	99,820	240,685		202,327
Professional services		18,950	21,113	37,697		42,302
Premises and equipment		11,787	12,053	24,444		23,635
Business development and travel		9,764	9,249	20,876		19,443
Net occupancy		8,149	7,680	15,462		15,000
FDIC and state assessments		5,962	4,945	11,751		9,073
Correspondent bank fees		3,337	3,274	6,705		6,477
(Reduction of) provision for unfunded credit commitments		(3,061)	2,185	(798)		3,308
Other	[2]	14,309	10,625	27,831		19,787
Total noninterest expense	[2]	194,112	170,944	384,653		341,352
Income before income tax expense	[2]	149,433	46,284	314,889		381,935
Income tax expense	[2]	54,974	35,928	118,040		97,224
Net income before noncontrolling interests	[2],[3],[4]	94,459	10,356	196,849	[5]	284,711	[5],[6]
Net (income) loss attributable to noncontrolling interests	[3]	(8,316)	40,597	(22,190)		(142,808)
Net income available to common stockholders	[2]	$ 86,143	$ 50,953	$ 174,659		$ 141,903
Earnings per common share—basic (dollars per share)	[2]	$ 1.68	$ 1.06	$ 3.42		$ 3.02
Earnings per common share—diluted (dollars per share)		$ 1.66	$ 1.04	$ 3.37		$ 2.96

[1] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjA2NWJiNjIxZjM0ZjRmOWVhYzRkYjZjMWUyZjAzZTk2fFRleHRTZWxlY3Rpb246ODVBMjJCNzk0NDdCOEEwRjQ3QTIwMTA2RUZDRUFERDEM}

[2] Prior period amounts have been revised to reflect the retrospective application of new accounting guidance adopted in the first quarter of 2015 related to our investments in qualified affordable housing projects (ASU 2014-01). See Note 1— "Basis of Presentation" of the "Notes to Interim Consolidated Financial Statements" under Part I, Item 1 in this report.

[3] Amounts for the six months ended June 30, 2015, have been revised to reflect the retrospective application of new accounting guidance adopted in the second quarter of 2015 related to our consolidated variable interest entities (ASU 2015-02). Amounts prior to January 1, 2015 have not been revised for the adoption of this guidance. See Note 1— "Basis of Presentation” of the “Notes to Interim Consolidated Financial Statements (unaudited)” under Part I, Item 1 of this report for additional details.

[4] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjA2NWJiNjIxZjM0ZjRmOWVhYzRkYjZjMWUyZjAzZTk2fFRleHRTZWxlY3Rpb246QzFCMzI2RjAxNTNCRTQ1RTEyOEUwMDhEODUyMTAyQjMM}

[5] Cash flows for the six months ended June 30, 2015 were revised to reflect the adoption of ASU 2015-02 as of January 1, 2015 and cash flows for the six months ended June 30, 2014 were revised to reflect the retrospective application of our adoption of ASU 2014-01.

[6] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjA2NWJiNjIxZjM0ZjRmOWVhYzRkYjZjMWUyZjAzZTk2fFRleHRTZWxlY3Rpb246RDkzQzlDOTUzQTZFNEMwRTFDNkEwMDkwNzIzOUVERTMM}