Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.4.0.3
Subsequent Events (Details) - USD ($)
Apr. 26, 2016
May. 31, 2015
May. 06, 2014
Subsequent Event [Line Items]      
Authorized amount of common stock repurchase   $ 50,000,000.0 $ 50,000,000
Common Stock | Subsequent Event      
Subsequent Event [Line Items]      
Extension of repurchase program (in years) 1 year    
Authorized amount of common stock repurchase $ 50,000,000.0