Stockholders' Equity and Equity Compensation - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended
	Apr. 30, 2017	Mar. 31, 2017	Mar. 31, 2016	Oct. 31, 2016
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share repurchase program, authorized amount				$ 40,000,000
Closing stock price (in dollars per share)		$ 22.91	$ 21.09
Stock options awarded during period (in shares)		0	0
Stock Awards
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share based compensation expense		$ 3,000,000	$ 2,300,000
Unrecognized share based compensation expense		$ 21,400,000
Weighted average recognition period		2 years 1 month 25 days
Deferred Stock Units
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share based compensation expense		$ 100,000	100,000
Stock Options
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share based compensation expense		0	$ 100,000
Unrecognized pre-tax expense related to stock option grants		$ 0
Stock Options | Minimum
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Award vesting period		7 years
Stock Options | Maximum
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Award vesting period		10 years
2016 Employee Plan
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Number of shares available for issuance (in shares)		207,474
2016 Director Plan
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Number of shares available for issuance (in shares)		161,326
Equity Compensation Programs
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share repurchase program, authorized amount		$ 10,000,000
Stock repurchased during period (in shares)		95,403.000	52,074
Stock repurchased during period, value		$ 2,100,000	$ 1,000,000
Shares repurchased, average price per share (in dollars per share)		$ 22.37	$ 19.61
Open Market Repurchase Program
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Stock repurchased during period (in shares)		366,914	858,582
Stock repurchased during period, value		$ 8,400,000	$ 15,300,000
Shares repurchased, average price per share (in dollars per share)		$ 22.82	$ 17.83
Subsequent Event | 2016 Employee Plan
Stockholders' Equity and Equity Compensation (Details) [Line Items]
Number of additional shares of common stock authorized (in shares)	1,000,000