Stockholders' Equity (Details) - USD ($)				1 Months Ended
	May 18, 2018	Feb. 16, 2018	Nov. 17, 2017	Jun. 30, 2016	Jun. 06, 2018	Apr. 30, 2018	Mar. 07, 2018	Dec. 06, 2017	Sep. 27, 2017
Class of Stock [Line Items]
Number of common stock sold in public offering (in shares)				7,145,000
Price per share (in dollars per share)				$ 14
Proceeds from sale of common stock				$ 95,029,000
Aggregate registered amount available for sale of securities under shelf registration statement						$ 74,970,000
Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract]
Stock repurchase program, remaining authorized repurchase amount						8,664,000
Maximum amount authorized by the Board of Directors for repurchases of the Company's common stock						$ 100,000,000
Dividends [Abstract]
Quarterly dividend payment amount per share (in dollars per share)							$ 0.1	$ 0.1	$ 0.1
Dividends, cash paid (in dollars per share)		$ 0.10	$ 0.10
Subsequent Event
Class of Stock [Line Items]
Aggregate registered amount available for sale of securities under shelf registration statement					$ 74,970,000
Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract]
Stock repurchase program, remaining authorized repurchase amount					$ 8,664,000
Dividends [Abstract]
Quarterly dividend payment amount per share (in dollars per share)					$ 0.10
Dividends, cash paid (in dollars per share)	$ 0.10