Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Summary of Impact on Condensed Consolidated Statement of Income due to Adoption of Topic 606 (Detail)

v3.10.0.1
Significant Accounting Policies - Summary of Impact on Condensed Consolidated Statement of Income due to Adoption of Topic 606 (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Revenue Initial Application Period Cumulative Effect Transition [Line Items]        
Net sales $ 1,242.8 $ 1,085.4 $ 3,705.2 $ 3,334.4
Cost of sales 218.1 215.4 693.4 638.8
Gross profit 1,024.7 870.0 3,011.8 2,695.6
Royalty overrides 344.0 310.1 1,031.1 944.1
Selling, general, and administrative expenses 499.4 445.2 1,469.7 1,327.0
Other operating income (6.0) (4.6) (23.9) (43.5)
Operating income 187.3 119.3 534.9 468.0
Interest expense, net 39.9 38.4 124.1 106.5
Other expense, net 30.9 0.0 60.0 0.0
Income before income taxes 116.5 80.9 350.8 361.5
Income taxes 45.3 26.4 103.1 84.2
Net income 71.2 $ 54.5 247.7 $ 277.3
Impact due to ASC 606 [Member] | Accounting Standards Update 2014-09 [Member]        
Revenue Initial Application Period Cumulative Effect Transition [Line Items]        
Net sales (5.6)   (18.7)  
Cost of sales 0.2   (0.2)  
Gross profit (5.8)   (18.5)  
Royalty overrides 0.3   (0.7)  
Selling, general, and administrative expenses (6.3)   (17.4)  
Operating income 0.2   (0.4)  
Income before income taxes 0.2   (0.4)  
Income taxes (0.1)   (0.1)  
Net income 0.3   (0.3)  
Without Adoption of Topic 606 [Member] | Accounting Standards Update 2014-09 [Member]        
Revenue Initial Application Period Cumulative Effect Transition [Line Items]        
Net sales 1,237.2   3,686.5  
Cost of sales 218.3   693.2  
Gross profit 1,018.9   2,993.3  
Royalty overrides 344.3   1,030.4  
Selling, general, and administrative expenses 493.1   1,452.3  
Other operating income (6.0)   (23.9)  
Operating income 187.5   534.5  
Interest expense, net 39.9   124.1  
Other expense, net 30.9   60.0  
Income before income taxes 116.7   350.4  
Income taxes 45.2   103.0  
Net income $ 71.5   $ 247.4