Condensed Consolidated and Combined Statements of Comprehensive Income (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 9.3	$ 13.4
Other comprehensive income (loss), net of tax:
Translation adjustments	0.1	3.0
Adjustment for net periodic pension and other postretirement benefits plan cost	0.4	(0.2)
Other comprehensive income, net of tax	0.5	2.8
Comprehensive income	$ 9.8	$ 16.2

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=51831270

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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