Quarterly report pursuant to Section 13 or 15(d)

Revenue (Details)

v3.19.2
Revenue (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Disaggregation of Revenue [Line Items]        
Net sales $ 177.7 $ 201.2 $ 319.4 $ 365.5
United States        
Disaggregation of Revenue [Line Items]        
Net sales 136.6 156.5 245.9 286.5
Canada        
Disaggregation of Revenue [Line Items]        
Net sales 10.6 14.9 20.6 27.1
China        
Disaggregation of Revenue [Line Items]        
Net sales 19.1 17.7 30.5 28.2
Other        
Disaggregation of Revenue [Line Items]        
Net sales $ 11.4 $ 12.1 $ 22.4 $ 23.7