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Leases	12 Months Ended
	Dec. 31, 2017
Leases [Abstract]
Leases	Leases We lease office space, manufacturing and warehouse facilities, automobiles and other equipment under operating lease arrangements. Rent expense was $13.7 million in 2017, $12.6 million in 2016 and $10.8 million in 2015. Minimum rent commitments under noncancellable leases are $13.0 million in 2018, $10.2 million in 2019, $7.1 million in 2020, $6.1 million in 2021, $3.7 million in 2022 and $5.8 million thereafter.

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- References

No definition available.

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- Definition

The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=77888251

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-URI http://asc.fasb.org/topic&trid=2208923

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