Condensed Consolidated Statement of Shareholder’s Equity - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Total
Balance at beginning of period at Dec. 31, 2014	$ 433	$ 270,847	$ 9,364	$ 280,644
Balance at beginning of period (in shares) at Dec. 31, 2014	43,313,200			43,313,200
Change in Stockholders' Equity
Sales of equity interests		100		$ 100
Purchase of equity interests			(731)	(731)
Equity-based compensation		73,263		73,263
Impact of liquidation of PG Holdco, LLC	$ (10)	10
Impact of liquidation of PG Holdco, LLC (in shares)	(1,028,122)
Conversion of equity-based compensation liability		21,008		21,008
Vesting of restricted stock	$ 1			1
Vesting of restricted stock (in shares)	48,901
Taxes paid for net settlements of restricted stock vesting		10,858		10,858
Taxes paid for net settlements of restricted stock (in shares)	(10,433)
Distribution payments			(8,500)	(8,500)
Initial public offering of common stock, net of issuance costs	$ 102	234,449		234,551
Initial public offering of common stock, net of issuance costs (in shares)	10,235,000
Net loss			(47,843)	(47,843)
Balance at end of period at Jun. 30, 2015	$ 526	$ 588,819	$ (47,710)	$ 541,635
Balance at end of period (in shares) at Jun. 30, 2015	52,558,546			52,558,546