Acquisitions - Proforma (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue
As reported	$ 386.1	$ 328.8	$ 730.6	$ 595.9
Net Earnings
As reported	$ 18.3	$ 18.8	$ 35.9	$ 24.0
Net earnings from continuing operations per share
As Reported Basic (in dollars per share)	$ 0.56	$ 0.64	$ 1.14	$ 0.81
As Reported Fully Diluted (in dollars per share)	$ 0.56	$ 0.63	$ 1.12	$ 0.80
Cooling and Applied Technologies, Inc. and Tipper Tie, Inc.
Revenue
Pro forma	$ 386.1	$ 361.4	$ 730.6	$ 659.1
As reported	386.1	328.8	730.6	595.5
Net Earnings
Pro forma	18.4	20.6	36.0	28.0
As reported	$ 18.3	$ 18.8	$ 35.9	$ 24.0
Net earnings from continuing operations per share
Pro Forma Basic (in dollars per share)	$ 0.58	$ 0.70	$ 1.16	$ 0.95
Pro Forma Fully Diluted (in dollars per share)	0.57	0.69	1.15	0.94
As Reported Basic (in dollars per share)	0.57	0.64	1.16	0.81
As Reported Fully Diluted (in dollars per share)	$ 0.57	$ 0.63	$ 1.14	$ 0.80