Capital Management and Dividends - Additional Information (Detail) $ / shares in Units, $ / shares in Units, $ in Millions, $ in Millions |
2 Months Ended | 3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
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May 21, 2018
$ / shares
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Sep. 30, 2016
USD ($)
$ / shares
shares
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Sep. 30, 2016
AUD ($)
$ / shares
shares
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Mar. 31, 2018
USD ($)
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Mar. 31, 2017
USD ($)
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Mar. 31, 2016
USD ($)
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| Dividends Payable [Line Items] | ||||||
| Aggregate cost of common stock repurchased | $ | $ 99.8 | $ 22.3 | ||||
| Ordinary dividend record date | Jun. 07, 2018 | |||||
| Ordinary dividend payment Date | Aug. 03, 2018 | |||||
| Subsequent Event [Member] | ||||||
| Dividends Payable [Line Items] | ||||||
| Ordinary dividend declared (in dollars per share) | $ / shares | $ 0.30 | |||||
| Fiscal 2017 Program [Member] | ||||||
| Dividends Payable [Line Items] | ||||||
| Aggregate cost of common stock repurchased | $ 99.8 | $ 131.4 | $ 100.0 | |||
| Aggregate number of common stock repurchased and cancelled (in shares) | shares | 6,090,133 | 6,090,133 | ||||
| Average price paid per share of common stock repurchased and cancelled | (per share) | $ 16.40 | $ 21.58 | ||||
| X | ||||||||||
- Definition Aggregate number of shares acquired under a stock repurchase plan. No definition available.
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. 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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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. 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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