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v3.19.1

Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Apr. 17, 2019 | Mar. 31, 2019 | Mar. 31, 2018 | Jun. 30, 2019 | May 16, 2019
Subsequent Event [Line Items] |  |  |  |  |
Restructuring Charges |  | $ 2,063 | $ 5,950 |  |
Subsequent Events [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Dividend declaration date | Apr. 17, 2019 |  |  |  |
Common stock dividends per share declared | $ 0.09 |  |  |  |
Dividend record date | May 02, 2019 |  |  |  |
Dividend payment date | May 16, 2019 |  |  |  |
Scenario Forecast [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly dividend payable subsequent to balance sheet date |  |  |  |  | $ 4,300
Restructuring Charges |  |  |  | $ 800 |

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