XML 136 R87.htm IDEA: XBRL DOCUMENT v3.22.0.1
Retirement Plans and Post Retirement Benefits Defined Contribution Plans and Other Benefit Plans (Details) - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Contribution Plans [Abstract]      
Expenses related to defined contribution plans and multiemployer plan $ 22.0 $ 16.0 $ 10.0
Deferred Compensation Arrangements [Abstract]      
Funded status $ (6.0) (10.0)  
Deferred compensation plan maximum deferral percentage 90.00%    
Deferred compensation plan, employer contributions and related earnings, maximum vesting period 5 years    
Deferred compensation liability included in "Other long-term liabilities" $ (2.0) $ (2.0)  
US Defined Contribution Plan [Member]      
Defined Contribution Plans [Abstract]      
Maximum percentage of employee's wages eligible for company match 5.00%    
Shares of LP common stock included in plan assets 1,000,000    
Total market value of plan assets represented by LP common stock 9.00%    
Canadian Defined Contribution Plan [Member]      
Defined Contribution Plans [Abstract]      
Maximum percentage of employee's wages eligible for company match 3.00%    
Percentage of base contribution 3.00%    
Employer matching percentage 50.00%    
UNITED STATES      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 100.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 100.00% 100.00%  
UNITED STATES | Equity Securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 0.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 0.00% 41.00%  
UNITED STATES | Debt Securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 76.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 76.00% 38.00%  
UNITED STATES | Multi-strategy Funds      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 0.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 0.00% 20.00%  
UNITED STATES | Cash and Cash Equivalents      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 24.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 24.00% 1.00%  
Foreign Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 100.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 100.00% 100.00%  
Foreign Plan | Debt Securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 54.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 22.00% 40.00%  
Foreign Plan | Multi-strategy Funds      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 0.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 59.00% 60.00%  
Foreign Plan | Cash and Cash Equivalents      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 46.00%    
Defined Benefit Plan, Actual Plan Asset Allocation 19.00% 0.00%  
Other Postretirement Benefits Plan [Member]      
Deferred Compensation Arrangements [Abstract]      
Funded status $ 10.0