Quarterly report pursuant to Section 13 or 15(d)

Relationship with AWI (Details)

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Relationship with AWI (Details) - Armstrong World Industries - USD ($)
3 Months Ended 6 Months Ended
Apr. 01, 2016
Mar. 31, 2017
Jun. 30, 2016
Jun. 30, 2016
Related Party Transaction [Line Items]        
Adjustments to tax attributes assumed from related party   $ 1,300,000    
Allocation of General Corporate and Other Expenses        
Related Party Transaction [Line Items]        
Expenses from transactions with related party $ 0   $ 0 $ 800,000
Allocation of General Corporate and Other Expenses | Selling, general and administrative expenses        
Related Party Transaction [Line Items]        
Expenses from transactions with related party     0 500,000
Allocation of General Corporate and Other Expenses | Other expense, net        
Related Party Transaction [Line Items]        
Expenses from transactions with related party     $ 0 $ 300,000