CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents		$ 1,877,914	$ 1,039,885
Short-term investments		274,838	338,714
Securities purchased under resale agreements ("resale agreements")		1,100,000	1,225,000
Available-for-sale investment securities, at fair value		2,982,146	2,626,365
Loans held for sale		195,427	45,950
Loans held-for-investment (net of allowance for loan losses of $261,229 in 2015 and $261,679 in 2014)	[1]	21,697,435	21,468,270
Other real estate owned, net		25,792	32,111
Investment in Federal Home Loan Bank stock, at cost		18,155	31,239
Investment in Federal Reserve Bank stock, at cost		54,675	54,451
Investments in qualified affordable housing partnerships, net		176,566	178,962	[2]
Premises and equipment (net of accumulated depreciation of $92,797 in 2015 and $85,409 in 2014)		173,333	180,900
Goodwill		469,433	469,433
Other assets		1,018,358	1,052,312	[2]
TOTAL		30,064,072	28,743,592	[2]
Customer deposits:
Noninterest-bearing		7,705,335	7,381,030
Interest-bearing		17,822,885	16,627,744
Total deposits		25,528,220	24,008,774
Short-term borrowings		3,271
Federal Home Loan Bank advances		318,322	317,241
Securities sold under repurchase agreements ("repurchase agreements")		400,000	795,000
Long-term debt		215,964	225,848
Accrued expenses and other liabilities		593,347	540,618
Total liabilities		$ 27,059,124	$ 25,887,481
COMMITMENTS AND CONTINGENCIES (Note 12)
STOCKHOLDERS' EQUITY
Common stock, $0.001 par value, 200,000,000 shares authorized; 164,182,103 and 163,772,218 shares issued in 2015 and 2014, respectively; 143,849,036 and 143,582,229 shares outstanding in 2015 and 2014, respectively.		$ 164	$ 164
Additional paid in capital		1,690,384	1,677,767
Retained earnings		1,744,955	1,604,141	[2]
Treasury stock, at cost-20,333,067 shares in 2015 and 20,189,989 shares in 2014		(435,985)	(430,198)
Accumulated other comprehensive income, net of tax		5,430	4,237
Total stockholders' equity		3,004,948	2,856,111	[2]
TOTAL		$ 30,064,072	$ 28,743,592	[2]

[1] Loans net of ASC 310-30 discount.

[2] Prior periods were restated to reflect the retrospective application of adopting the new accounting guidance related to the Company's investments in qualified affordable housing projects Accounting Standards Update ("ASU") 2014-01. See Note 10 of the Notes to Consolidated Financial Statements for additional information.