Product Warranty (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Product Warranty Liability [Line Items]
Insurance Receivable Related to Product Warranty				$ 41.1
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning balance, January 1	$ 132.0	$ 72.7
Provisions	28.6	47.8
Acquisitions	12.3	64.9
Payments	(54.7)	(42.0)
Translation adjustment	(10.3)	(11.4)
Ending balance, December 31	107.9	132.0
Product Warranty Accrual, Balance Sheet Classification [Abstract]
Accounts payable and accrued expenses			$ 70.6	91.9
Other non-current liabilities			37.3	40.1
Total product warranty liability	132.0	$ 72.7	$ 107.9	$ 132.0
Remy International Inc. [Member]
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Acquisitions	29.4
Gustav Wahler GmbH u. Co. KG and General Partner [Member]
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Acquisitions	$ 17.1