Subsequent Events (Details) - $ / shares	Apr. 30, 2019	Mar. 31, 2019
Subsequent Event [Line Items]
Shares repurchase program, authorized repurchase amount, shares		3,000,000
Subsequent event [Member]
Subsequent Event [Line Items]
Dividend per share, common stock (in dollars per share)	$ 0.24
Subsequent event [Member] | Amended and Restated 2010 Equity Incentive Plan [Member]
Subsequent Event [Line Items]
Shares repurchase program, authorized repurchase amount, shares	1,510,079