Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net income (loss)	$ (14,171)	$ (31,849)
Adjustments to reconcile net loss to net cash provided by operating activities:
Provision for loan losses	78,913	57,708
Depreciation and amortization	5,172	4,435
Amortization of debt issuance costs	1,874	2,969
Stock-based compensation	6,465	7,662
Amortization of net deferred origination costs	24,648	16,008
Changes in servicing rights, at fair value	1,093	3,074
Gain on sales of loans	(1,744)	(9,924)
Unfunded loan commitment reserve	267	(625)
Gain on extinguishment of debt	(272)	(562)
Changes in operating assets and liabilities:
Other assets	374	18
Accounts payable	298	1,175
Interest payable	284	372
Accrued expenses and other liabilities	(7,569)	(229)
Originations of loans held for sale	(41,421)	(167,207)
Capitalized net deferred origination costs of loans held for sale	(950)	(5,769)
Proceeds from sale of loans held for sale	42,730	170,043
Principal repayments of loans held for sale	1,004	5,014
Net cash provided by operating activities	96,995	52,313
Cash flows from investing activities
Change in restricted cash	(9,734)	(1,353)
Purchases of property, equipment and software	(1,081)	(5,494)
Capitalized internal-use software	(1,824)	(2,610)
Originations of term loans and lines of credit, excluding rollovers into new originations	(857,841)	(862,454)
Proceeds from sale of loans held for investment	10,008	41,375
Payments of net deferred origination costs	(21,317)	(21,033)
Principal repayments of term loans and lines of credit	804,875	547,305
Other	0	(201)
Purchase of loans	(13,730)	(6,672)
Net cash used in investing activities	(90,644)	(311,137)
Cash flows from financing activities
Investments by noncontrolling interests	3,443	0
Purchase of treasury shares	(644)	(254)
Proceeds from exercise of stock options and warrants	347	104
Issuance of common stock under employee stock purchase plan	1,246	1,487
Payments of debt issuance costs	(3,284)	(3,740)
Distribution to noncontrolling interest	(1,000)	0
Net cash provided by (used in) financing activities	(8,748)	176,897
Effect of exchange rate changes on cash and cash equivalents	779	168
Net decrease in cash and cash equivalents	(1,618)	(81,759)
Cash and cash equivalents at beginning of period	79,554	159,822
Cash and cash equivalents at end of period	77,936	78,063
Supplemental disclosure of other cash flow information
Cash paid for interest	21,300	9,447
Supplemental disclosures of non-cash investing and financing activities
Stock-based compensation included in capitalized internal-use software	140	647
Unpaid principal balance of term loans rolled into new originations	138,115	129,688
Funding debt
Cash flows from financing activities
Proceeds from the issuance of funding debt	105,167	491,742
Repayments of funding debt principal	(111,023)	(312,442)
Corporate debt
Cash flows from financing activities
Proceeds from the issuance of funding debt	7,000	0
Repayments of funding debt principal	$ (10,000)	$ 0