Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities
Net income (loss)	$ (49,022)	$ 2,912
Adjustments to reconcile net loss to net cash provided by operating activities:
Provision for loan losses	94,294	54,865
Depreciation and amortization	6,887	4,621
Amortization of debt issuance costs	3,733	2,130
Stock-based compensation	11,423	8,065
Amortization of net deferred origination costs	25,837	26,041
Changes in servicing rights, at fair value	4,074	0
Gain on sales of loans	(12,594)	(35,178)
Unfunded loan commitment reserve	(405)	1,915
Gain on extinguishment of debt	(940)	(182)
Changes in operating assets and liabilities:
Other assets	(1,221)	(11,053)
Accounts payable	1,386	59
Interest payable	826	(124)
Accrued expenses and other liabilities	(844)	10,313
Originations of loans held for sale	(238,077)	(314,134)
Payments of net deferred origination costs of loans held for sale	(8,074)	(12,142)
Proceeds from sale of loans held for sale	246,051	342,825
Principal repayments of loans held for sale	6,189	8,757
Net cash provided by operating activities	89,523	89,690
Cash flows from investing activities
Change in restricted cash	(4,364)	(6,061)
Purchases of property, equipment and software	(6,337)	(5,115)
Capitalized internal-use software	(3,702)	(3,219)
Originations of term loans and lines of credit, excluding rollovers into new originations	(1,333,192)	(809,319)
Proceeds from sale of loans held for investment	57,238	106,007
Payments of net deferred origination costs	(32,909)	(20,578)
Principal repayments of term loans and lines of credit	881,077	639,918
Purchases of term loans	(6,672)	0
Other	(201)	0
Net cash used in investing activities	(449,062)	(98,367)
Cash flows from financing activities
Proceeds from exercise of stock options and warrants	131	227
Payments of initial public offering costs	0	(1,845)
Purchase of shares for treasury	(576)	(184)
Investments by noncontrolling interests	0	7,069
Issuance of common stock under employee stock purchase plan	2,606	0
Payments of debt issuance costs	(4,655)	(1,185)
Net cash provided by (used in) financing activities	285,236	(44,479)
Effect of exchange rate changes on cash and cash equivalents	429	(1,564)
Net decrease in cash and cash equivalents	(73,874)	(54,720)
Cash and cash equivalents at beginning of period	159,822	220,433
Cash and cash equivalents at end of period	85,948	165,713
Supplemental disclosure of other cash flow information
Cash paid for interest	16,282	11,739
Supplemental disclosures of non-cash investing and financing activities
Stock-based compensation included in capitalized internal-use software	1,025	597
Loans transferred from loans held for sale to loans held for investment	861	1,348
Unpaid principal balance of term loans rolled into new originations	200,637	194,218
Funding debt
Cash flows from financing activities
Proceeds from the issuance of funding debt	606,051	159,557
Repayment of debt	(328,321)	(196,118)
Corporate debt
Cash flows from financing activities
Proceeds from the issuance of funding debt	10,000	0
Repayment of debt	$ 0	$ (12,000)