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Employee Benefit Plans - Multiemployer Pension Plans and Year with Employer's Total Contribution Greater Than 5% (Detail)
12 Months Ended
Dec. 31, 2016
Distributors Association Warehousemen's Pension Trust [Member]  
Multiemployer Plans [Line Items]  
Year Contributions to Plan Exceeded 5% of Total Contributions (as of Plan's Year End) 5/31/2015 and 5/31/2014
Local 731 Private Scavengers and Garage Attendants Pension Trust Fund [Member]  
Multiemployer Plans [Line Items]  
Year Contributions to Plan Exceeded 5% of Total Contributions (as of Plan's Year End) 9/30/2015 and 9/30/2014
Suburban Teamsters of Northern Illinois Pension Plan [Member]  
Multiemployer Plans [Line Items]  
Year Contributions to Plan Exceeded 5% of Total Contributions (as of Plan's Year End) 12/31/2015 and 12/31/2014
Teamsters Local 301 Pension Plan [Member]  
Multiemployer Plans [Line Items]  
Year Contributions to Plan Exceeded 5% of Total Contributions (as of Plan's Year End) 12/31/2015 and 12/31/2014