Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.4.0.3
Subsequent Events (Details) - Subsequent Event
Apr. 01, 2016
USD ($)
Subsequent Event [Line Items]  
Distribution to affiliate $ 50,000,000
Revolving Credit Facility  
Subsequent Event [Line Items]  
Proceeds from line of credit $ 100,000,000
Line of Credit  
Subsequent Event [Line Items]  
Unused capacity fee, percentage 0.25%
Line of Credit | Revolving Credit Facility  
Subsequent Event [Line Items]  
Maximum borrowing capacity $ 225,000,000
Term of debt instrument 5 years
Line of Credit | Standby Letters of Credit  
Subsequent Event [Line Items]  
Maximum borrowing capacity $ 50,000,000.0
Line of Credit | LIBOR  
Subsequent Event [Line Items]  
Basis spread on variable rate 1.50%
Pension Plan  
Subsequent Event [Line Items]  
Funded status of plan $ 33,000,000
Projected benefit obligation 383,000,000
Fair value of plan assets 350,000,000
Transfer of pension liabilities from former parent | Armstrong World Industries | Pension Plan  
Subsequent Event [Line Items]  
Transfer of plan liabilities 33,000,000
Transfer of pension liabilities from former parent | Armstrong World Industries | Postretirement Benefit Plan  
Subsequent Event [Line Items]  
Transfer of plan liabilities $ 95,000,000
Transition Trademark License agreement | Armstrong World Industries  
Subsequent Event [Line Items]  
Trademark License Agreement, royalty-free term 5 years
Campus Lease Agreement | Armstrong World Industries  
Subsequent Event [Line Items]  
Term of lease contract 5 years
Minimum annual rent expense $ 5,600,000