Unaudited Condensed Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue:
Interest income	$ 71,361	$ 48,624	$ 188,726	$ 147,571
Gain on sales of loans	2,670	16,789	12,594	35,178
Other revenue	3,340	1,985	8,168	4,418
Gross revenue	77,371	67,398	209,488	187,167
Cost of revenue:
Provision for loan losses	36,586	16,239	94,294	54,865
Funding costs	8,452	5,126	22,548	14,941
Total cost of revenue	45,038	21,365	116,842	69,806
Net revenue	32,333	46,033	92,646	117,361
Operating expense:
Sales and marketing	16,789	15,847	50,094	43,503
Technology and analytics	15,050	11,111	42,894	29,904
Processing and servicing	5,181	3,352	14,261	9,070
General and administrative	12,375	12,146	34,233	31,722
Total operating expense	49,395	42,456	141,482	114,199
Income (loss) from operations	(17,062)	3,577	(48,836)	3,162
Other expense:
Interest expense	(111)	(70)	(186)	(250)
Total other expense	(111)	(70)	(186)	(250)
Income (loss) before provision for income taxes	(17,173)	3,507	(49,022)	2,912
Provision for income taxes	0	0	0	0
Net income (loss)	(17,173)	3,507	(49,022)	2,912
Net loss attributable to noncontrolling interests	539	226	1,920	458
Net income (loss) attributable to On Deck Capital, Inc. common stockholders	$ (16,634)	$ 3,733	$ (47,102)	$ 3,370
Net income (loss) per share attributable to On Deck Capital, Inc. common stockholders:
Basic (USD per share)	$ (0.23)	$ 0.05	$ (0.67)	$ 0.05
Diluted (USD per share)	$ (0.23)	$ 0.05	$ (0.67)	$ 0.04
Weighted-average common shares outstanding:
Basic (in shares)	70,971,895	69,678,742	70,750,037	69,472,636
Diluted (in shares)	70,971,895	75,125,740	70,750,037	75,414,348
Comprehensive income (loss):
Net income (loss)	$ (17,173)	$ 3,507	$ (49,022)	$ 2,912
Other comprehensive income (loss):
Foreign currency translation adjustment	210	(1,215)	393	(1,215)
Comprehensive income (loss):	(16,963)	2,292	(48,629)	1,697
Comprehensive income (loss) attributable to noncontrolling interests	(95)	546	(177)	546
Net loss attributable to noncontrolling interests	539	226	1,920	458
Comprehensive income (loss) attributable to On Deck Capital, Inc. common stockholders	$ (16,519)	$ 3,064	$ (46,886)	$ 2,701