v3.3.1.900
Earnings Per Share - Additional Information (Details) - shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Restricted Stock Units (RSUs) [Member]      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive Securities Excluded from Computation of Earnings Per Share Amount 0   0
Stock Options [Member]      
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]      
Antidilutive Securities Excluded from Computation of Earnings Per Share Amount 0 0 0