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Discontinued Operations	6 Months Ended
Discontinued Operations	Jun. 30, 2017
Discontinued Operations And Disposal Groups [Abstract]
Discontinued Operations	10. DISCONTINUED OPERATIONS The Company recorded an after tax loss of $0.1 million from discontinued operations in the six months of 2017. The Company recorded income of $4.4 million in the first six months of 2016 primarily as a result of payments received from settlement agreements with insurers, as well as with Crane Co., in connection with the declaratory action filed in the United States District court for the Eastern District of Missouri.