Annual report pursuant to Section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v3.3.1.900
Subsequent Events - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Feb. 25, 2016
Jan. 01, 2016
Dec. 31, 2015
Subsequent Event [Line Items]      
Dividends payable, date declared     Feb. 25, 2016
Dividends declared, payable date     Mar. 24, 2016
Dividends declared, record date     Mar. 10, 2016
Subsequent Event      
Subsequent Event [Line Items]      
Dividends declared per share $ 0.01    
Subsequent Event | LEEVAC Shipyards, LLC      
Subsequent Event [Line Items]      
Acquisition purchase price   $ 20.0  
Cash received from acquisition   $ 1.6