Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended			12 Months Ended	0 Months Ended		3 Months Ended	6 Months Ended
	Jul. 01, 2012	Jul. 01, 2012	Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2011 Austroflex	Aug. 02, 2013 Subsequent event Austroflex	Aug. 02, 2013 Subsequent event Austroflex Estimated	Jul. 01, 2012 Flomatic	Jul. 01, 2012 Flomatic
Discontinued Operations
Loss on disposal							$ 2.0	$ (0.5)	$ (0.8)
Income before income taxes	0.5	0.8
Income tax expense	0.2	0.3
Income from discontinued operations, net of taxes	0.3	0.5
Total revenues								3.7	6.7
Proceeds from sale of outstanding shares of an indirectly wholly-owned subsidiary						9
Written down value of long-lived assets	0.1	0.6			14.8
Carrying amounts of major classes of assets and liabilities
Inventory and accounts receivable			4.9	3.7
Prepaid expenses and other assets			2.9	3.8
Property, plant and equipment			1.6	1.9
Goodwill			4.2	4.2
Assets of discontinued operations			13.6	13.6
Accrued expenses and other liabilities			2.3	1.9
Deferred income taxes			0.3	0.3
Liabilities of discontinued operations			$ 2.6	$ 2.2