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v3.8.0.1

Subsequent Events - Additional Information (Detail) |  |  | 9 Months Ended
--- | --- | --- | ---
Dec. 22, 2017 | Dec. 21, 2017 USD ($) Employee $ / shares | Nov. 30, 2017
Subsequent Event [Line Items] |  |  |
Dividend payable date |  |  | Feb. 09, 2018
Dividend payable, date of record |  |  | Jan. 12, 2018
Corporate tax rate |  |  | 35.00%
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Dividend payable per share |  | $ 0.20 |
Corporate tax rate | 21.00% |  |
Subsequent Event [Member] | Special One-time Cash Dividend [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Dividend payable per share |  | $ 0.10 |
Dividend payable date |  | Feb. 09, 2018 |
Dividend payable, date of record |  | Jan. 12, 2018 |
Subsequent Event [Member] | Non-management Employees [Member] | Special One-time Bonus [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Bonus payment to each employee | $ |  | $ 500 |
Subsequent Event [Member] | Non-management Employees [Member] | Special One-time Bonus [Member] | Minimum [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Number of employees | Employee |  | 2,200 |

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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
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