v3.7.0.1
Equity, Dividends and Change in Accumulated Other Comprehensive Loss - Additional Information (Detail)
 12 Months Ended
Jan. 15, 2015
Dec. 12, 2014
USD ($)
shares
Nov. 18, 2014
shares
Aug. 04, 2014
shares
May 02, 2014
USD ($)
Dec. 31, 2016
USD ($)
$ / shares
shares
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2014
USD ($)
Feb. 24, 2016
USD ($)
Equity Note [Line Items]                  
Common Stock, shares issued | shares       13,400,000          
Stock Split ratio     5            
Common stock, shares outstanding | shares     67,100,000     67,600,000 67,900,000    
Common stock, shares authorized | shares     400,000,000     400,000,000 400,000,000    
Offering related costs             $ 100,000 $ 5,600,000  
Ownership Percentage of the outstanding common stock           100.00%      
Dividends, common stock           $ 25,400,000 18,500,000    
Accrued dividends on unvested restricted shares           600,000      
Cash dividends           $ 25,100,000 $ 18,200,000 $ 111,300,000  
Common stock number of shares repurchased | shares           1,898,261      
Shares repurchased, average purchase price per share | $ / shares           $ 15.56      
Maximum                  
Equity Note [Line Items]                  
Share repurchase program authorized amount                 $ 35,000,000
ASP HHI Holdings, Inc [Member]                  
Equity Note [Line Items]                  
Cash dividends         $ 111,300,000        
IPO [Member]                  
Equity Note [Line Items]                  
Shares issued under IPO | shares   10,000,000              
Offering related costs   $ 5,600,000              
American Security [Member]                  
Equity Note [Line Items]                  
Ownership Percentage of the outstanding common stock 78.50%