Stock-Based Compensation Plans - Amendments to Restricted Stock and SARs - Additional Information (Detail) - Deferred stock units [Member] |
Nov. 05, 2013 |
|---|---|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| DSU settlement to common stock percentage | 20.00% |
| DSU settlement into actual stock issued term | 5 years |
| Employee termination age | 67 years |
| Percentage of shares of deferred stock units settled in the event of death or termination after reaching age 67 | 100.00% |
| Share Based Compensation Arrangement By Share Based Payment Award Stock Appreciation Rights Offering Date | Mar. 31, 2013 |
| X | ||||||||||
- Definition Settlement of DSUs to actual common stock percentage. No definition available.
|
| X | ||||||||||
- Definition Settlement of DSUs to actual common stock term. No definition available.
|
| X | ||||||||||
- Definition Employee Termination Age No definition available.
|
| X | ||||||||||
- Definition Percentage of deferred stock units settled in the event of death or employment termination after reaching the age of 67. No definition available.
|
| X | ||||||||||
- Definition Share based compensation arrangement by share based payment award stock appreciation rights offering date. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|