CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities
Net income	$ 174,068	$ 197,723
Adjustments to reconcile net income to net cash used in operating activities:
Provision for loan losses	55,071	40,081
Tax provision	115,502	122,011
Amortization of FDIC fees	0	1,046
Amortization of brokered deposit placement fee	7,548	7,128
Amortization of deferred loan origination costs and fees, net	1,446	753
Net amortization (accretion) of discount on investments	433	(6,442)
Depreciation of premises and equipment	2,326	2,977
Amortization and impairment of acquired intangibles	4,145	3,085
Stock-based compensation expense	20,127	12,420
Interest rate swap	1,307	(641)
Gains on sales of loans, net	(120,963)	(192,097)
Changes in operating assets and liabilities:
Net decrease in loans held for sale	6,448	2,674
Origination of loans held for sale	(6,448)	(2,674)
Increase in accrued interest receivable	(220,273)	(184,590)
(Increase) decrease in other interest-earning assets	(47,836)	87
(Increase) decrease in other assets	11,499	8,148
Decrease in income tax payable	(294,116)	(209,362)
Decrease (increase) in accrued interest payable	2,639	(130)
Increase in payable due to Navient	18,114	228,243
Increase (decrease) in other liabilities	30,741	(23,584)
Total adjustments	(412,290)	(190,867)
Total net cash (used in) provided by operating activities	(238,222)	6,856
Investing activities
Loans acquired and originated	(38,165)	(274,975)
Net proceeds from sales of loans held for investment	1,994,017	2,428,404
Net increase in loans held for investment	(2,932,369)	(2,809,567)
Purchases of available-for-sale securities	(55,928)	(33,037)
Proceeds from sales and maturities of available-for-sale securities	7,337	14,313
Total net cash used in investing activities	(1,025,108)	(674,862)
Financing activities
Brokered deposit placement fee	(5,533)	0
Net decrease in brokered certificates of deposit	(601,685)	(552,908)
Net (decrease) increase in NOW account deposits	(18,214)	6,558
Net (decrease) increase in High Yield Savings Deposits	(39,359)	22,083
Net (decrease) increase in Retail Certificates of Deposit	(13,268)	27,759
Net increase in MMDA deposits	862,447	927,997
Net decrease in deposits with entity that is a subsidiary of Navient	(5,633)	(122,870)
Special cash contribution from Navient	472,718	0
Net capital contributions from entity that is a subsidiary of Navient	7,448	28,164
Preferred stock dividends paid	(8,078)	0
Dividend paid to entity that is a subsidiary of Navient	0	(120,000)
Net cash provided by financing activities	650,843	216,783
Net decrease in cash and cash equivalents	(612,487)	(451,223)
Cash and cash equivalents at beginning of period	2,182,865	1,599,082
Cash and cash equivalents at end of period	1,570,378	1,147,859
Cash disbursements made for:
Interest	64,987	58,573
Income taxes paid	$ 294,116	$ 209,362