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Leases - Additional Information (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
Jan. 01, 2019
USD ($)
Jul. 01, 2007
USD ($)
Lessee, Lease, Description [Line Items]          
Operating lease right-of-use assets $ 25.5   $ 0.0 $ 27.1  
Operating lease liabilities $ 27.8     $ 29.5  
Deferred gain on sale-leaseback transactions     8.7   $ 29.0
Deferred tax impact of remaining deferred gain associated with the sale-leaseback transactions     2.2    
Sale-leaseback transaction lease period 15 years        
Deferred gain $ 0.0 $ 0.4 $ 1.9    
Number of principal manufacturing plants leased 8        
Number of principal manufacturing plants 14        
Joe Johnson Equipment          
Lessee, Lease, Description [Line Items]          
Operating lease liabilities $ 0.7        
Number of facility operating leases with affiliates 2        
Initial lease term for two facilities owned by affiliates of the sellers of JJE 5 years