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Leases - Additional Information (Detail) - USD ($)
$ in Thousands
 9 Months Ended
Jan. 01, 2019
Sep. 30, 2019
Lessee Lease Description [Line Items]    
Right-of-use assets   $ 524,207
Lease liabilities   $ 557,364
Operating leases remaining lease term 1 year  
ASU 2016-02 [Member]    
Lessee Lease Description [Line Items]    
Right-of-use assets $ 500,300  
Lease liabilities $ 526,600  
Minimum [Member]    
Lessee Lease Description [Line Items]    
Lessee operating and finance lease term of contract   5 years
Minimum [Member] | Copiers and Equipment [Member]    
Lessee Lease Description [Line Items]    
Lessee operating and finance lease term of contract   1 year
Maximum [Member]    
Lessee Lease Description [Line Items]    
Lessee operating and finance lease term of contract   30 years
Maximum [Member] | Copiers and Equipment [Member]    
Lessee Lease Description [Line Items]    
Lessee operating and finance lease term of contract   3 years