Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.20.4
Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 22, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Taxes [Line Items]            
Tax cuts and jobs act of 2017 deferred tax assets valuation allowance.     $ 163.4      
Tax loss and credit carryforwards       $ 128.3 $ 103.6  
Amount of tax loss and credit carryforwards that can be carried forward indefinitely       25.6    
U.S. foreign tax credit carryforwards       202.1 208.9  
State tax loss carryforwards       $ 0.9 $ 0.9  
Effective tax rate applied       21.00% 21.00% 21.00%
Net expense $ 153.3 $ 29.5        
Remeasurement of net deferred tax liabilities in corporate income tax rate     5.5      
Domestic foreign tax credit carryforwards     $ 4.6      
Valuation allowance       $ 390.8 $ 330.3  
Valuation allowance, deferred tax asset, change in amount       60.5 11.2 $ 52.5
Unremitted earnings that were permanently reinvested relating to operating subsidiaries       2,600.0    
Deferred tax liability on unremitted foreign earnings       22.3 28.2  
Total amount of unrecognized tax benefits, including related interest and penalties   65.2   65.9 59.9 65.2
Unrecognized tax benefits excluding interest and penalties that if recognized would affect the effective tax rate       46.9 40.3  
Total accrued interest for tax contingencies   10.0   11.4 9.1 10.0
Total accrued penalties for tax contingencies   $ 1.7   1.8 1.9 1.7
Increase (decrease) in interest expense related to uncertain tax positions       2.4 0.7 1.0
Increase (decrease) in penalties to uncertain tax positions       0.1 0.2 $ 0.4
Amount of unrecognized tax benefits that could decrease within the next 12 months       10.6    
Decrease in unrecognized tax benefits due to the settlement of audits or resolution of administrative or judicial proceedings       5.7    
Decrease in unrecognized tax benefits expiration of statute of limitations       $ 4.9    
Earliest Tax Year [Member]            
Income Taxes [Line Items]            
Open tax years by major tax jurisdiction       2015    
Domestic [Member]            
Income Taxes [Line Items]            
Domestic research and development tax credit carryforward       $ 9.0 $ 8.4  
Domestic [Member] | Research and Development [Member]            
Income Taxes [Line Items]            
Expiration year of tax credit carryforwards       2036    
Domestic [Member] | Earliest Tax Year [Member]            
Income Taxes [Line Items]            
Expiration year of tax loss carryforwards       2020    
Domestic [Member] | Latest Tax Year [Member]            
Income Taxes [Line Items]            
Expiration year of tax loss carryforwards       2019    
United States [Member]            
Income Taxes [Line Items]            
Unremitted earnings that were permanently reinvested       $ 147.7    
Total amount of unrecognized tax benefits, including related interest and penalties       $ 102.7    
United States [Member] | Earliest Tax Year [Member]            
Income Taxes [Line Items]            
Expiration year of tax loss carryforwards       2023    
United States [Member] | Latest Tax Year [Member]            
Income Taxes [Line Items]            
Expiration year of tax loss carryforwards       2030    
China Growth and Impact Investment Fund [Member]            
Income Taxes [Line Items]            
Unremitted earnings that were permanently reinvested       $ 113.9