Acquisitions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended				1 Months Ended				0 Months Ended
	Sep. 30, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2014	Dec. 31, 2014	Oct. 31, 2014	Jun. 30, 2014	Oct. 31, 2013	Apr. 26, 2013	Nov. 30, 2012	Mar. 23, 2012	Dec. 31, 2011	Nov. 30, 2013 Facility
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business acquisition, cash paid		$ 72.7	$ 45.8	$ 97.0
Goodwill		89.5	60.4	49.7		89.5							9.5
Gain on acquisition of business	0.6	0	0.6	0
Saet S.p.A
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues			35.9
Autoform Tool and Manufacturing
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues			36.8
Apollo Aerospace Group
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues					8.1
QEF Global Limited
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues				14.0
Saet S.p.A
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business acquisition, cash paid						22.1
Goodwill		23.2				23.2
Autoform and Apollo
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Goodwill		5.7				5.7
Autoform Tool and Manufacturing
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business acquisition, cash paid							48.9
Apollo Aerospace Group
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business acquisition, cash paid								6.5
Contingent consideration								2.4
Contingent consideration, period for targets								2 years
Contingent consideration, fair value of earn-out								1.1
QEF Global Limited
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Number of locations/facilities held by acquiree														4
QEF Global Limited and Henry Halstead Ltd.
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business acquisition, cash paid									24.2
Goodwill									7.9
Bates Rubber
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business acquisition, cash paid										20.8
Goodwill										5.0
Elastomeros Tecnicos Moldeados Inc
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business acquisition, cash paid											1.1
Goodwill											0.9
Funding of acquisition, promissory notes payable											0.5
Annual payment due in each of the next four years if certain earnings levels achieved											0.1
FRS
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business acquisition, cash paid												40.0
Goodwill												39.3
Number of locations/facilities held by acquiree												5
Business acquisition, purchase price												98.8
Revenues attributable to acquisition				152.4
Net income attributable to acquisition				7.1
FRS | Term loan
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Funding of acquisition, liabilities incurred												25.0
Term loan, period												7 years
FRS | Revolving credit facility
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Funding of acquisition, liabilities incurred												$ 33.8