|
Share-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
9 Months Ended | 6 Months Ended | 9 Months Ended | 6 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2013
|
Sep. 30, 2012
|
Jun. 30, 2013
1992 Stock Option Plan [Member]
|
Sep. 30, 2013
2007 Long-Term Incentive Plan
|
Jun. 30, 2013
Minimum [Member]
|
Jun. 30, 2013
Maximum [Member]
|
Jun. 30, 2013
All Other Options Granted [Member]
|
Jun. 30, 2013
Director [Member]
Options Granted Prior to May 25, 2004 [Member]
|
Sep. 30, 2013
Director [Member]
Options Granted on or after May 25, 2004 [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||
| Stock authorized to be issued under plan (in shares) | 9,900,000 | 1,687,500 | |||||||
| Exercise price of shares granted may not be less than fair market value (percentage) | 85.00% | 100.00% | |||||||
| Vesting period | 1 year | ||||||||
| Exercisable period | 2 years | 10 years | 9 years | ||||||
| Annual vesting period | 20.00% | 20.00% | 33.33% | ||||||
| Unrecognized pre-tax compensation cost | $ 2.0 | $ 1.2 | |||||||
| Weighted average recognition period (in years) | 2 years 3 months 18 days | 2 years 1 month 6 days | |||||||
| Total intrinsic value of options exercised during period | 1.5 | 2.1 | |||||||
| Cash received from options exercised during period | $ 1.0 | $ 1.1 | |||||||