Subsequent Events - Additional Information (Detail) - USD ($) $ in Millions |
1 Months Ended | ||
|---|---|---|---|
Jan. 31, 2018 |
Dec. 31, 2017 |
Feb. 21, 2017 |
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| Subsequent Event [Line Items] | |||
| Share repurchase program authorized amount | $ 1,500.0 | $ 1,500.0 | $ 1,500.0 |
| Subsequent Event [Member] | Open market purchases [Member] | |||
| Subsequent Event [Line Items] | |||
| Repurchase of common stock, shares | 4,200 | ||
| Repurchase of common stock, value | $ 0.3 |
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- Definition Amount of stock repurchase plan authorized. No definition available.
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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