Other Commitments and Contingencies (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 0 Months Ended | ||
---|---|---|---|---|
Dec. 31, 2014
|
Oct. 28, 2010
|
Dec. 06, 2013
|
Sep. 17, 2014
|
|
Commitments and Contingencies Disclosure [Abstract] | ||||
Noncancellable commitments in equipment purchases | $ 11.2 | |||
Loss Contingencies [Line Items] | ||||
Lawsuit filing date | 2008-06-19 | |||
Company Best Estimate Of Exposure | 2.0 | |||
Maximum loss amount | 10.0 | |||
The Court [Member] | ||||
Loss Contingencies [Line Items] | ||||
Amount To Pay To Plaintiff | 1 | |||
Fifth Civil Court Of Appeal [Member] | ||||
Loss Contingencies [Line Items] | ||||
Amount To Pay To Plaintiff | 7 | |||
First Civil Collegiate Tribunal [Member] | ||||
Loss Contingencies [Line Items] | ||||
Amount To Pay To Plaintiff | $ 2 |