Equity Incentive Plans - Summary of Activity Related to Outstanding Stock Options (Details) - $ / shares		3 Months Ended	9 Months Ended
		Sep. 30, 2016	Sep. 30, 2016
Service Period Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Options, Outstanding Beginning Balance			1,976,810
Number of Options, Granted			845,131
Number of Options, Forfeited, Canceled, Expired			(9,595)
Number of Options, Exercised			(302,851)
Number of Options, Outstanding Ending Balance		2,509,495	2,509,495
Weighted Average Exercise Price, Outstanding Beginning Balance			$ 8.00
Weighted Average Exercise Price, Granted			9.75
Weighted Average Exercise Price, Forfeited, Canceled, Expired			9.00
Weighted Average Exercise Price, Exercised			6.54
Weighted Average Exercise Price, Outstanding Ending Balance		$ 8.76	$ 8.76
Performance-Vested Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Options, Outstanding Beginning Balance	[1]		916,183
Number of Options, Granted	[1]		883,759
Number of Options, Forfeited, Canceled, Expired	[1]		(1,870)
Number of Options, Outstanding Ending Balance	[1]	1,798,072	1,798,072
Weighted Average Exercise Price, Outstanding Beginning Balance			$ 9.34
Weighted Average Exercise Price, Granted			9.67
Weighted Average Exercise Price, Forfeited, Canceled, Expired			15.00
Weighted Average Exercise Price, Exercised			0.00
Weighted Average Exercise Price, Outstanding Ending Balance		$ 9.50	$ 9.50
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of RSUs, Granted		0	105,313
Number of RSUs, Forfeited, Canceled, Expired			(2,956)
Number of RSUs, Outstanding Ending Balance		102,357	102,357
Weighted Average Grant Date Fair Value, Granted			$ 9.05
Weighted Average Grant Date Fair Value, Forfeited, Canceled, Expired			9.05
Weighted Average Grant Date Fair Value, Outstanding Ending Balance		$ 9.05	$ 9.05

[1] As of September 30, 2016, 447,501 performance-vested stock options have performance metrics that are probable of achievement. These shares are included in share-based compensation costs for the three and nine months ended September 30, 2016.