Share-Based Compensation - Summary of Activity Under Share-Based Compensation Plans (Parenthetical) (Detail) - shares shares in Thousands |
6 Months Ended | |
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Jun. 30, 2015 |
Dec. 31, 2014 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Granted SARs | 3,483 | |
| Market condition awards [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Outstanding SARs | 100 | |
| Granted SARs | 100 | |
| Performance condition SARs [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Outstanding SARs | 2,500 | 1,000 |
| Exercisable SARs | 300 | |
| Granted SARs | 1,500 |
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- Definition Share-based compensation arrangement by share-based payment award options and appreciation rights grants in period. No definition available.
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- Definition The number of exercisable stock appreciation rights (SARs). No definition available.
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- Definition The number of outstanding stock appreciation rights (SARs). No definition available.
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- 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.
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