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Organization and Significant Accounting Policies - Disaggregation Of Revenue (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax $ 3,155,671 $ 3,785,063 $ 3,707,628
Sales Revenues [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 2,060,593 1,954,705 1,857,004
Marketing Revenues [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 1,095,078 1,830,358 1,850,624
Marketing Brand Centric Services [Member] | Marketing Revenues [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 429,200 474,928 424,373
Marketing Retail Centric Services [Member] | Marketing Revenues [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 665,878 1,355,430 1,426,251
Sales Brand Centric Services [Member] | Sales Revenues [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax 1,204,240 1,209,480 1,177,989
Sales Brand Retail Services [Member] | Sales Revenues [Member]      
Disaggregation of Revenue [Line Items]      
Revenue from Contract with Customer, Excluding Assessed Tax $ 856,353 $ 745,225 $ 679,015