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Leases
12 Months Ended
Dec. 31, 2018
Leases [Abstract]  
Leases
Leases
We lease office space, manufacturing and warehouse facilities, automobiles and other equipment under operating lease arrangements. Rent expense was $12.5 million in 2018, $13.7 million in 2017 and $12.6 million in 2016. Minimum rent commitments under noncancellable leases are $11.2 million in 2019, $7.9 million in 2020, $6.1 million in 2021, $3.8 million in 2022, $2.6 million in 2023 and $2.0 million thereafter.