CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net income before noncontrolling interests	$ 282,793		$ 136,817	$ 10,640
Adjustments to reconcile net income to net cash provided by operating activities:
Impairment of goodwill				4,092
Net gain from note repurchases and termination of corresponding interest rate swaps	(3,123)	[1]
Provision for loan losses	6,101		44,628	90,180
Provision for (reduction of) unfunded credit commitments	4,397		4,083	(1,367)
Changes in fair values of derivatives, net	(26,202)		(3,867)	3,500
(Gains) losses on investment securities, net	(195,034)		(93,360)	31,209
Depreciation and amortization	27,490		23,224	24,931
Amortization of premiums on available-for-sale securities, net	27,849		24,071	10,461
Tax benefit of original issue discount				10,745
Tax benefit (expense) from stock exercises	798		(189)	(1,767)
Amortization of share-based compensation	18,221		13,761	14,784
Amortization of deferred loan fees	(61,158)		(50,488)	(52,471)
Deferred income tax expense (benefit)	7,362		(1,434)	2,094
Changes in other assets and liabilities:
Accrued interest receivable and payable, net	(12,370)		1,560	(9,988)
Accounts receivable	(38,765)		(4,393)	1,609
Income tax payable or receivable, net	(809)		16,694	(14,769)
Prepaid FDIC assessments and amortization	8,754		10,648	(28,178)
Accrued compensation	35,403		41,195	1,916
Foreign exchange spot contracts, net	62,747		(2,615)	(6,689)
Other, net	21,833		2,893	(3,969)
Net cash provided by operating activities	166,287		163,228	86,963
Cash flows from investing activities:
Purchases of available-for-sale securities	(7,127,525)		(6,757,150)	(3,325,235)
Proceeds from sales of available-for-sale securities	1,415,463		655,555	3,569
Proceeds from maturities and pay downs of available-for-sale securities	3,215,186		2,151,574	712,396
Purchases of nonmarketable securities (cost and equity method accounting)	(59,081)		(53,450)	(57,477)
Proceeds from sales of nonmarketable securities (cost and equity method accounting)	36,589		20,147	5,191
Purchases of nonmarketable securities (investment fair value accounting)	(164,910)		(119,313)	(67,369)
Proceeds from sales of nonmarketable securities (investment fair value accounting)	80,757		44,739	18,509
Net (increase) decrease in loans	(1,429,702)		(983,077)	849,570
Proceeds from recoveries of charged-off loans	25,123		16,788	18,444
Proceeds from sale of other real estate owned			196	899
Payment for acquisition of intangibles, net of cash acquired			(360)
Purchases of premises and equipment	(30,751)		(27,056)	(15,963)
Payment for acquisition of remaining interest in eProsper			(1,300)
Net cash used for investing activities	(4,038,851)		(5,052,707)	(1,857,466)
Cash flows from financing activities:
Net increase in deposits	2,372,595		4,005,004	2,858,465
Principal payments of other long-term debt	(4,179)		(1,961)	(102,578)
Decrease in short-term borrowings	(37,245)		(1,510)	(23,365)
Payments for repurchases of 5.70% Senior Notes and 6.05% Subordinated Notes, including repurchase premiums and associated fees	(346,443)
Proceeds from termination of portions of interest rate swaps associated with 5.70% Senior Notes and 6.05% Subordinated Notes	36,959
Payments for settlement of 3.875% Convertible Notes	(250,000)
Proceeds from issuance of 5.375% Senior Notes, net of discount and issuance cost			344,476
Capital contributions from noncontrolling interests, net of distributions	96,178		85,699	62,781
Tax benefit from stock exercises	6,342		4,151	458
Dividends paid on preferred stock				(12,110)
Proceeds from issuance of common stock and Employee Stock Purchase Plan	36,873		24,019	5,873
Proceeds from the issuance of common stock under our public equity offering, net of issuance costs				292,107
Redemption of preferred stock under the CPP				(235,000)
Repurchase of warrant under CPP			(6,820)
Net cash provided by financing activities	1,911,080		4,453,058	2,846,631
Net (decrease) increase in cash and cash equivalents	(1,961,484)		(436,421)	1,076,128
Cash and cash equivalents at beginning of year	3,076,432		3,512,853	2,436,725
Cash and cash equivalents at end of year	1,114,948		3,076,432	3,512,853
Cash paid during the period for:
Interest	41,203		35,588	50,017
Income taxes	103,848		41,763	39,050
Noncash items during the period:
Unrealized gains on available-for-sale securities, net of tax	65,689		17,168	10,814
Net change in fair value of interest rate swaps	$ (3,617)		$ 5,122	$ (47,247)

[1] Represents gains from the repurchase of $108.6 million of our 5.70% Senior Notes and $204.0 million of our 6.05% Subordinated Notes and the termination of the corresponding portions of interest rate swaps in 2011. For more information, see Note 11-"Short-Term Borrowings and Long-Term Debt."