Equity Incentive Plans - Summary of Shares of Common Stock Issued (Details) - 2015 Omnibus Incentive Plan - shares	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
RSUs
Class of Stock [Line Items]
Cumulative undelivered shares of common stock (in shares)	74,442
PSUs
Class of Stock [Line Items]
Cumulative undelivered shares of common stock (in shares)	0
Common Stock | RSUs
Class of Stock [Line Items]
Shares of common stock issued (in shares)	52,512	401,986
Shares of common stock withheld by the Company as payment by employees in lieu of cash to satisfy tax withholding obligations (in shares)	(16,973)	(123,013)
Net shares of common stock issued (in shares)	35,539	278,973
Cumulative undelivered shares of common stock (in shares)	262,568	177,249
Common Stock | PSUs
Class of Stock [Line Items]
Shares of common stock issued (in shares)	789	900,226
Shares of common stock withheld by the Company as payment by employees in lieu of cash to satisfy tax withholding obligations (in shares)	(269)	(325,246)
Net shares of common stock issued (in shares)	520	574,980
Cumulative undelivered shares of common stock (in shares)	0	0