Comprehensive Income (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net income	$ 65.7	$ 57.9	$ 116.4	$ 96.9
Foreign currency translation adjustments	6.4	(3.1)	15.5	(6.4)
Amortization of net prior service costs and net acturial losses, net of tax	1.3	0.7	2.7	1.7
Change in unrealized gains on investments, net of tax	0.2	0.2	0.2	0.1
Change in unrealized (losses) gains on cash flow hedges, net of tax	0.1	0.8	0	0.8
Total comprehensive income	73.7	56.5	134.8	93.1
Less: Comprehensive income attributable to noncontrolling interest	0.5	0.3	0.9	0.7
Comprehensive income attributable to Hubbell	$ 73.2	$ 56.2	$ 133.9	$ 92.4