Earnings per Share - Basic Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Income (numerator):
Net income (loss) attributable to controlling interests		$ (1,387)	$ 18,911
Less: Dividends and accretion on preferred stock		(2,027)
Net income (loss) attributable to common shareholders		$ (3,414)	$ 18,911
Weighted-average shares (denominator):
Weighted-average number of shares of Class A common stock - basic	[1]	62,197	33,222
Weighted-average number of shares of Class A common stock - diluted	[1]	62,197	33,222
Earnings (loss) per share:
Basic - Net income (loss) attributable to common shareholders	[1]	$ (0.05)	$ 0.57
Diluted - Net income (loss) attributable to common shareholders	[1]	$ (0.05)	$ 0.57

[1] All share and earnings per share information presented has been recast to retrospectively adjust for the effects of the 0.087423 per share Special Stock Dividend, as defined in Note 11, “Stockholders’ and Mezzanine equity”, distributed on March 31, 2017.