Equity-based Compensation - Summary of Restricted Shares Activity (Details) - Equity Plan [Member] - Restricted Stock [Member]	9 Months Ended
	Sep. 30, 2017 $ / shares shares
Number of Shares/Units
Unvested shares, Beginning Balance (shares) | shares	562,406
Vested (shares) | shares	(196,937)
Forfeited (shares) | shares	(46,386)
Unvested shares, Ending Balance (shares) | shares	319,083
Weighted-Average Grant Date Fair Value
Unvested shares, Beginning Balance (in dollars per share) | $ / shares	$ 13.78
Vested (in dollars per share) | $ / shares	14.03
Forfeited (in dollars per share) | $ / shares	13.91
Unvested shares, Ending Balance (in dollars per share) | $ / shares	$ 13.61