Interim Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Interest income:
Loans	$ 123,744		$ 109,461
Available-for-sale securities:
Taxable	45,752		47,375
Non-taxable	799		900
Federal funds sold, securities purchased under agreements to resell and other short-term investment securities	719		1,038
Total interest income	171,014		158,774
Interest expense:
Deposits	2,051		1,481
Borrowings	5,794		6,356
Total interest expense	7,845		7,837
Net interest income	163,169		150,937
Provision for loan losses	5,813		14,529
Net interest income after provision for loan losses	157,356		136,408
Noninterest income:
Gains on investment securities, net (includes losses of $45 and $874, respectively, in unrealized net losses on available-for-sale securities reclassified out of AOCI)	27,438		7,839
Foreign exchange fees	13,448		12,103
Gains on derivative instruments, net	11,040		5,976
Deposit service charges	8,793		8,096
Credit card fees	7,448		5,668
Client investment fees	3,475		2,897
Letters of credit and standby letters of credit income	3,435		3,636
Other	3,527		13,078
Total noninterest income	78,604		59,293
Noninterest expense:
Compensation and benefits	88,704		83,737
Professional services	17,160		14,607
Premises and equipment	10,725		7,564
Business development and travel	8,272		7,746
Net occupancy	5,767		5,623
FDIC assessments	3,382		2,498
Correspondent bank fees	3,055		2,688
Provision for (reduction of) unfunded credit commitments	2,014		(258)
Other	9,935		7,807
Total noninterest expense	149,014	[1]	132,012	[1]
Income before income tax expense	86,946	[2]	63,689	[2]
Income tax expense (includes income tax benefits of $18 and $357, respectively, from AOCI reclassification items)	26,401		23,756
Net income before noncontrolling interests	60,545		39,933
Net income attributable to noncontrolling interests	(19,654)		(5,143)
Net income available to common stockholders	$ 40,891		$ 34,790
Earnings per common share—basic	$ 0.91		$ 0.79
Earnings per common share—diluted	$ 0.90		$ 0.78

[1] The Global Commercial Bank segment includes direct depreciation and amortization of $5.0 million and $3.4 million for the three months ended March 31, 2013 and 2012, respectively.

[2] 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.