Interim Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Interest income:
Loans	$ 165,458		$ 148,172
Investment securities:
Taxable	81,274		54,420
Non-taxable	772		796
Federal funds sold, securities purchased under agreements to resell and other short-term investment securities	1,285		1,636
Total interest income	248,789		205,024
Interest expense:
Deposits	1,943		2,904
Borrowings	7,956		5,792
Total interest expense	9,899		8,696
Net interest income	238,890		196,328
Provision for loan losses	6,452		494
Net interest income after provision for loan losses	232,438		195,834
Noninterest income:
Gains on investment securities, net	83,159		223,912
Gains on derivative instruments, net	39,729		24,167
Foreign exchange fees	17,678		17,196
Credit card fees	12,090		10,282
Deposit service charges	10,736		9,607
Lending related fees	8,022		6,303
Letters of credit and standby letters of credit fees	5,202		4,140
Client investment fees	4,482		3,418
Other	(9,080)		11,200
Total noninterest income	172,018		310,225
Noninterest expense:
Compensation and benefits	115,770		102,507
Professional services	24,185		21,189
Premises and equipment	12,657		11,582
Business development and travel	11,112		10,194
Net occupancy	7,313		7,320
FDIC and state assessments	5,789		4,128
Correspondent bank fees	3,421		3,203
Provision for unfunded credit commitments	2,263		1,123
Other	13,598		9,162	[1]
Total noninterest expense	196,108	[2]	170,408	[1],[2]
Income before income tax expense	208,348	[3]	335,651	[1],[3]
Income tax expense	63,066		61,296	[1]
Net income before noncontrolling interests	145,282	[4]	274,355	[1],[4]
Net income attributable to noncontrolling interests	(56,766)		(183,405)
Net income available to common stockholders	$ 88,516		$ 90,950	[1],[5]
Earnings per common share—basic (dollars per share)	$ 1.74		$ 1.98	[1],[5]
Earnings per common share—diluted (dollars per share)	$ 1.71		$ 1.95

[1] 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.

[2] The Global Commercial Bank segment includes direct depreciation and amortization of $5.1 million and $4.9 million for the three months ended March 31, 2015 and 2014, respectively

[3] The internal reporting model used by management to assess segment performance does not calculate income tax expense by segment. Our effective tax rate is a reasonable approximation of the segment rates.

[4] Cash flows for the quarters ended March 31, 2015 and March 31, 2014 were revised to reflect the retrospective application of our adoption of ASU 2014-01.

[5] Results for the quarter ended March 31, 2014 were restated to reflect the retrospective application of adopting new accounting guidance in 2015 related to our investments in qualified affordable housing projects (ASU 2014-01). See Note 1 of the Notes to Consolidated Financial Statements for additional information.