Unaudited Condensed Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue:
Interest and finance income	$ 105,641	$ 92,209	$ 211,440	$ 178,438
Other revenue	4,605	3,247	8,781	7,158
Gross revenue	110,246	95,456	220,221	185,596
Cost of revenue:
Provision for credit losses	42,951	33,293	86,242	69,586
Interest expense	11,381	12,245	22,713	24,117
Total cost of revenue	54,332	45,538	108,955	93,703
Net revenue	55,914	49,918	111,266	91,893
Operating expense:
Sales and marketing	13,307	11,432	25,267	22,030
Technology and analytics	16,681	12,799	33,487	23,806
Processing and servicing	5,609	5,041	11,098	10,262
General and administrative	16,353	16,034	30,382	33,759
Total operating expense	51,950	45,306	100,234	89,857
Income (loss) from operations, before provision for income taxes	3,964	4,612	11,032	2,036
Provision for income taxes	1,796	0	3,536	0
Net income (loss)	2,168	4,612	7,496	2,036
Less: Net income (loss) attributable to noncontrolling interest	(2,127)	(1,016)	(2,465)	(1,535)
Net income (loss) attributable to On Deck Capital, Inc. common stockholders	$ 4,295	$ 5,628	$ 9,961	$ 3,571
Net income (loss) per share attributable to On Deck Capital, Inc. common stockholders:
Basic (in dollars per share)	$ 0.06	$ 0.08	$ 0.13	$ 0.05
Diluted (in dollars per share)	$ 0.05	$ 0.07	$ 0.13	$ 0.05
Weighted-average common shares outstanding:
Basic (in shares)	76,137,751	74,385,446	75,840,604	74,182,929
Diluted (in shares)	78,901,601	78,288,267	79,013,757	77,786,748
Comprehensive income (loss):
Net Income (loss)	$ 2,168	$ 4,612	$ 7,496	$ 2,036
Unrealized (loss) on derivative instrument	(124)	0	(866)	0
Foreign currency translation adjustment	405	(395)	771	(508)
Comprehensive income (loss)	2,449	4,217	7,401	1,528
Less: Comprehensive income (loss) attributable to noncontrolling interests	(58)	(179)	(32)	(229)
Less: Net income (loss) attributable to noncontrolling interest	(2,127)	(1,016)	(2,465)	(1,535)
Comprehensive income (loss) attributable to On Deck Capital, Inc. common stockholders	$ 4,634	$ 5,412	$ 9,898	$ 3,292