Exit and Disposal Activities (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Exit and disposal activities
Total exit and disposal costs	$ 0.7	$ 0.3
Exit and disposal costs accrued
Balance at the beginning of period	2.4
Charges to expense and adjustments	0.7
Usage	(2.6)
Balance at the end of period	0.5
Termination benefits
Exit and disposal activities
Total exit and disposal costs	0.1
Exit and disposal costs accrued
Balance at the beginning of period	1.8
Charges to expense and adjustments	0.1
Usage	(1.7)
Balance at the end of period	0.2
Other associated costs
Exit and disposal activities
Total exit and disposal costs	0.6	0.3
Exit and disposal costs accrued
Balance at the beginning of period	0.6
Charges to expense and adjustments	0.6
Usage	(0.9)
Balance at the end of period	$ 0.3

The charge against earnings in the period, comprised of costs incurred associated with an exit or disposal activity other than for a discontinued operations as defined under generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References+ Details

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

+ References+ Details

- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

+ References+ Details