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Pension Plans - Additional Information (Detail) - USD ($)
 12 Months Ended
Mar. 10, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Pension And Other Employee Benefit Plans [Line Items]        
Prior service cost   $ 0    
Pre-tax unfunded pension obligation gain (loss)   $ 100,000    
Asset performance rate of return assumption   8.00%    
Expected long-term return on plan assets   8.00% 8.00% 8.00%
Contribution to pension plan   $ 0    
Expense for contribution plan   $ 5,800,000 $ 5,500,000 $ 6,100,000
Weighted average of one year treasury bill   1.00%    
Interest rate for the supplemental profit sharing plan   1.65% 1.22%  
Expense for the supplemental profit sharing plan   $ 500,000 $ 300,000 $ 500,000
Supplemental profit sharing plan unfunded status   4,300,000 $ 3,900,000  
Subsequent Event [Member]        
Pension And Other Employee Benefit Plans [Line Items]        
Estimated net loss for the PLP-USA pension plan $ 300,000      
Gain on Industry Updates to Mortality Table [Member]        
Pension And Other Employee Benefit Plans [Line Items]        
Pre-tax unfunded pension obligation gain (loss)   700,000    
Demographic Changes [Member]        
Pension And Other Employee Benefit Plans [Line Items]        
Pre-tax unfunded pension obligation gain (loss)   (200,000)    
Asset Performance [Member]        
Pension And Other Employee Benefit Plans [Line Items]        
Pre-tax unfunded pension obligation gain (loss)   $ (400,000)