XML 33 R50.htm IDEA: XBRL DOCUMENT v3.19.3
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION - Additional Information (Detail)
$ in Millions
9 Months Ended
Sep. 30, 2019
USD ($)
segment
Jan. 01, 2019
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Number of reportable segments | segment 2  
Operating lease right-of-use assets $ 464.6  
Operating lease liabilities $ 495.0  
Accounting Standards Update 2016-02    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating lease right-of-use assets   $ 518.0
Operating lease liabilities   622.0
Deferred tax assets   150.0
Deferred tax liabilities   125.0
Accounting Standards Update 2018-02    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Effect of adoption adjustment reduction to retained earnings   0.0
Accumulated Other Comprehensive Loss | Accounting Standards Update 2018-02    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Effect of adoption adjustment reduction to retained earnings   (19.8)
Retained Earnings | Accounting Standards Update 2018-02    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Effect of adoption adjustment reduction to retained earnings   $ 19.8