Segments (Schedule of Segment Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012		Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2011	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Net sales:
Net sales	$ 309.4	$ 303.5	$ 307.3	$ 283.0	$ 274.0		$ 285.2	$ 307.3	$ 261.7		$ 1,203.2	[1]	$ 1,128.2	[1]	$ 961.4	[1]
Segment operating income:
Total segment operating income											86.5		80.9	[1]	60.1	[1]
Corporate costs											(23.1)	[1]	(18.9)	[1]	(16.3)	[1]
Restructuring and asset impairment charges										(5.4)	0	[1]	0	[1]	(5.4)	[1]
Litigation judgment and settlement costs											(5.2)	[1]	(13.0)	[1]	0	[1]
Gain on acquisition of business		0.6									0.6	[1]	0	[1]	0	[1]
Interest expense											(26.8)	[1]	(26.4)	[1]	(32.2)	[1]
Income from continuing operations before income taxes											60.3	[1]	54.5	[1]	27.9	[1]
Identifiable assets	818.7				726.6	[1]					818.7		726.6	[1]	614.8
Depreciation and amortization expense											19.2		18.0		16.2
Capital expenditures											30.1		29.6		12.7
Supply Technologies
Net sales:
Net sales											471.9	[1]	483.8	[1]	481.4	[1]
Segment operating income:
Total segment operating income											35.9	[1]	37.9	[1]	35.1	[1]
Identifiable assets	241.7				207.0						241.7		207.0		225.3
Depreciation and amortization expense											3.0		3.9		4.6
Capital expenditures											3.8		1.6		1.3
Assembly Components
Net sales:
Net sales											412.8	[1]	304.0	[1]	157.8	[1]
Segment operating income:
Total segment operating income											31.8	[1]	19.9	[1]	1.4	[1]
Identifiable assets	276.7				230.0						276.7		230.0		73.1
Depreciation and amortization expense											11.6		9.5		7.2
Capital expenditures											21.5		22.1		7.7
Engineered Products
Net sales:
Net sales											318.5	[1]	340.4	[1]	322.2	[1]
Segment operating income:
Total segment operating income											47.1	[1]	55.0	[1]	45.3	[1]
Identifiable assets	183.1				199.4						183.1		199.4		195.8
Depreciation and amortization expense											3.4		3.2		3.9
Capital expenditures											3.6		3.1		0.9
General Corporate
Segment operating income:
Identifiable assets	117.2				90.2						117.2		90.2		120.6
Depreciation and amortization expense											1.2		1.4		0.5
Capital expenditures											1.2		2.8		2.8
Operating Segments
Segment operating income:
Total segment operating income											$ 114.8	[1]	$ 112.8	[1]	$ 81.8	[1]

[1] Adjusted to reflect the discontinued operations.