Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	IPO [Member]	Common Stock [Member]	Common Stock [Member] IPO [Member]	Additional Paid in Capital [Member]	Additional Paid in Capital [Member] IPO [Member]	(Accumulated Deficit) Retained Earnings [Member]	Non-controlling Interest [Member]	Treasury Stock [Member]
Beginning balance, value at Dec. 31, 2013	$ 5,083		$ 457		$ 33,978		$ (29,349)	$ (3)
Beginning balance, shares at Dec. 31, 2013			45,708,573
Acquisition of CP IV Blocker under the 2014 Reorganization	3							$ 3
Reclassification of accumulated deficit to additional paid in capital under the 2014 Reorganization					(29,349)		29,349
Incentive units converted to common and restricted stock			$ 35		(35)
Incentive units converted to common and restricted stock, shares			3,517,327
Issuance of common stock		$ 62,856		$ 46		$ 62,810
Issuance of common stock, shares				4,606,882
Stock-based compensation	716				716
Capital impact of the 2014 Reorganization	(183)				(183)
Net income	5,663						5,663
Ending balance, value at Dec. 31, 2014	74,138		$ 538		67,937		5,663
Ending balance, shares at Dec. 31, 2014			53,832,782
Vesting of restricted stock			$ 33		(33)
Vesting of restricted stock, shares			3,287,091
Stock-based compensation	3,231				3,231
Net income	20,945						20,945
Ending balance, value at Dec. 31, 2015	98,314		$ 571		71,135		26,608
Ending balance, shares at Dec. 31, 2015			57,119,873
Vesting of restricted stock			$ 14		(14)
Vesting of restricted stock, shares			1,333,410
Stock-based compensation	24,331				24,331
Repurchases of common stock	(49,958)								$ (49,958)
Repurchases of common stock, shares									1,122,261
Net income	43,840						43,840
Ending balance, value at Dec. 31, 2016	$ 116,527		$ 585		$ 95,452		$ 70,448		$ (49,958)
Ending balance, shares at Dec. 31, 2016			58,453,283						1,122,261