Share-Based Awards - Schedule of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($) $ / shares shares
Omnibus Plan | Series C
Options Outstanding
Outstanding, beginning balance (in shares)	193,998
Grants (in shares)	278,629
Exercised (in shares)	0
Forfeited (in shares)	(10,000)
Outstanding, ending balance (in shares)	462,627
Outstanding, Weighted average exercise price (in dollars per share) | $ / shares	$ 15.61
Outstanding, Weighted average remaining contractual life	9 years 9 months
Outstanding, Aggregate intrinsic value | $	$ 178
Exercisable (in shares)	0
Legacy Plans | Series C
Options Outstanding
Outstanding, beginning balance (in shares)	5,580,109
Grants (in shares)	0
Exercised (in shares)	(55,655)
Forfeited (in shares)	(46,494)
Outstanding, ending balance (in shares)	5,477,960
Outstanding, Weighted average exercise price (in dollars per share) | $ / shares	$ 13.02
Outstanding, Weighted average remaining contractual life	7 years 11 months 20 days
Outstanding, Aggregate intrinsic value | $	$ 16,908
Exercisable (in shares)	1,261,320
Exercisable, Weighted average exercise price (in dollars per share) | $ / shares	$ 3.45
Exercisable, Weighted average remaining contractual life	4 years 1 month 10 days
Exercisable, Aggregate intrinsic value | $	$ 15,236
Transitional Plan | Series C
Options Outstanding
Outstanding, beginning balance (in shares)	1,006,043
Grants (in shares)	0
Exercised (in shares)	(119,028)
Forfeited (in shares)	(3,558)
Outstanding, ending balance (in shares)	883,457
Outstanding, Weighted average exercise price (in dollars per share) | $ / shares	$ 9.41
Outstanding, Weighted average remaining contractual life	4 years 2 months
Outstanding, Aggregate intrinsic value | $	$ 5,409
Exercisable (in shares)	476,669
Exercisable, Weighted average exercise price (in dollars per share) | $ / shares	$ 7.23
Exercisable, Weighted average remaining contractual life	3 years 5 months
Exercisable, Aggregate intrinsic value | $	$ 3,956
Transitional Plan | Series A
Options Outstanding
Outstanding, beginning balance (in shares)	329,188
Grants (in shares)	0
Exercised (in shares)	(59,532)
Forfeited (in shares)	(1,785)
Outstanding, ending balance (in shares)	267,871
Outstanding, Weighted average exercise price (in dollars per share) | $ / shares	$ 7.90
Outstanding, Weighted average remaining contractual life	3 years 8 months
Outstanding, Aggregate intrinsic value | $	$ 2,019
Exercisable (in shares)	204,631
Exercisable, Weighted average exercise price (in dollars per share) | $ / shares	$ 6.46
Exercisable, Weighted average remaining contractual life	3 years
Exercisable, Aggregate intrinsic value | $	$ 1,835