Hannon Armstrong Sustainable Infrastructure Capital, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Non-Controlling Interest - Analysis of Controlling and Non-Controlling Interest (Detail)

Non-Controlling Interest - Analysis of Controlling and Non-Controlling Interest (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2012	Sep. 30, 2011
Noncontrolling Interest [Line Items]
Beginning Balance	$ 161,800	$ 150,624	$ 5,851	$ 19,162	$ 16,285
Net income (loss) attributable to interest holders	(10,800)	9,800
Issuance of common stock		129,400
Redemption of OP units		(1,782)
Repurchase of common stock		(205)	(366)
Equity-based compensation	7,100	5,200
Distributions	(7,100)	(21,100)
Change in accumulated other comprehensive income		300
Tax basis difference on contributed asset		(1,858)
Ending Balance	150,624	274,042	150,624	19,162	16,285
Issuance (repurchase) of vested equity-based shares and other adjustments post IPO	(400)
Controlling Interest [Member]
Noncontrolling Interest [Line Items]
Beginning Balance	161,800	146,500
Net income (loss) attributable to interest holders	(10,500)	9,600
Issuance of common stock		129,400
Redemption of OP units		(600)
Repurchase of common stock		(200)
Equity-based compensation	6,900	5,100
Distributions	(6,900)	(20,800)
Change in accumulated other comprehensive income		300
Tax basis difference on contributed asset		1,800
Redemption value change for non-controlling interest redeemable for cash		(1,800)
Ending Balance	146,500	269,300	146,500
Establishment of non-controlling interest during formation transaction	(4,400)
Issuance (repurchase) of vested equity-based shares and other adjustments post IPO	(400)
Non-Controlling Interest Holders [Member]
Noncontrolling Interest [Line Items]
Beginning Balance		4,099
Net income (loss) attributable to interest holders	(300)	200
Redemption of OP units		(1,200)
Equity-based compensation	200	100
Distributions	(200)	(300)
Tax basis difference on contributed asset		(39)
Redemption value change for non-controlling interest redeemable for cash		1,833
Ending Balance	4,099	4,743	4,099
Establishment of non-controlling interest during formation transaction	$ 4,400