Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities
Net income (loss)	$ (11,602)	$ (13,141)
Adjustments to reconcile net loss to net cash provided by operating activities:
Provision for loan losses	46,180	25,437
Depreciation and amortization	2,596	2,078
Amortization of debt issuance costs	797	693
Stock-based compensation	3,491	3,752
Amortization of net deferred origination costs	11,883	7,381
Changes in servicing rights, at fair value	701	1,775
Gain on sales of loans	(1,484)	(7,111)
Unfunded loan commitment reserve	119	(1,073)
Gain on extinguishment of debt	(229)	(300)
Changes in operating assets and liabilities:
Other assets	1,120	(2,994)
Accounts payable	(1,231)	2,822
Interest payable	488	188
Accrued expenses and other liabilities	(8,053)	(877)
Originations of loans held for sale	(33,042)	(111,878)
Capitalized net deferred origination costs of loans held for sale	(911)	(3,585)
Proceeds from sale of loans held for sale	33,326	112,859
Principal repayments of loans held for sale	722	3,823
Net cash provided by operating activities	44,871	19,849
Cash flows from investing activities
Change in restricted cash	(20,240)	5,772
Purchases of property, equipment and software	(145)	(4,846)
Capitalized internal-use software	(1,219)	(1,270)
Originations of term loans and lines of credit, excluding rollovers into new originations	(469,913)	(390,149)
Proceeds from sale of loans held for investment	10,008	17,049
Payments of net deferred origination costs	(12,314)	(9,845)
Principal repayments of term loans and lines of credit	389,976	249,237
Other	0	(201)
Purchase of loans	(13,518)	0
Net cash used in investing activities	(117,365)	(134,253)
Cash flows from financing activities
Investments by noncontrolling interests	3,443	0
Purchase of treasury shares	(205)	0
Proceeds from exercise of stock options and warrants	195	125
Issuance of common stock under employee stock purchase plan	1,246	1,487
Payments of debt issuance costs	(2,488)	(184)
Net cash provided by (used in) financing activities	65,516	90,959
Effect of exchange rate changes on cash and cash equivalents	421	466
Net decrease in cash and cash equivalents	(6,557)	(22,979)
Cash and cash equivalents at beginning of period	79,554	159,822
Cash and cash equivalents at end of period	72,997	136,843
Supplemental disclosure of other cash flow information
Cash paid for interest	10,257	4,109
Supplemental disclosures of non-cash investing and financing activities
Stock-based compensation included in capitalized internal-use software	92	334
Unpaid principal balance of term loans rolled into new originations	70,059	67,636
Funding debt
Cash flows from financing activities
Proceeds from the issuance of funding debt	66,119	110,950
Repayments of funding debt principal	$ (2,794)	$ (21,419)