Stock-Based Compensation Plans - Schedule of Future Share Settlements (Detail) - Deferred stock units [Member] |
9 Months Ended |
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Sep. 30, 2017
shares
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| 2017 | 351,801 |
| 2018 | 351,796 |
| 2021 | 60,373 |
| 2022 | 166,449 |
| Total | 930,419 |
| X | ||||||||||
- Definition Fully vested deferred stock units remaining outstanding. No definition available.
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- Definition Fully vested deferred stock units reserved for future issuance in year five. No definition available.
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| X | ||||||||||
- Definition Fully vested deferred stock units reserved for future issuance in year six. No definition available.
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| X | ||||||||||
- Definition Fully vested Deferred Stock Units reserved for future issuance in year two. No definition available.
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| X | ||||||||||
- Definition Fully vested Deferred Stock Units reserved for future issuance remainder of fiscal year. No definition available.
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| 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.
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- Details
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