v3.7.0.1

Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2015
Income Tax Contingency [Line Items] |  |  |
Income taxes paid | $ 45,332,000 | $ 44,625,000 | $ 42,404,000
Net operating loss carryforwards carried forward indefinitely | 110,506,000 |  |
Net operating loss carryforwards subject to expiration | 40,834,000 |  |
Valuation allowance | $ 27,053,000 | $ 25,416,000 |
Effective income tax rates | 25.60% | 27.50% | 27.20%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent | 13.50% | 16.90% | 14.80%
Income (Loss) from Continuing Operations before Income Taxes, Foreign | $ 132,259,000 | $ 117,702,000 | $ 173,012,000
Undistributed earnings of foreign subsidiaries | 960,000,000 | 878,225,000 |
Estimated change in unrecognized tax benefit in fiscal 2015 | 284,000 |  |
Tax related interest and penalties | $ 112,000 | $ 310,000 |
Tax Rate of Swiss Subsidiary | 5.00% | 7.00% | 7.00%
Foreign |  |  |
Income Tax Contingency [Line Items] |  |  |
United States federal net operating loss carryforwards | $ 151,340,000 |  |
Valuation allowance | 25,298,000 | $ 23,710,000 |
Federal |  |  |
Income Tax Contingency [Line Items] |  |  |
United States federal net operating loss carryforwards | 1,797,000 |  |
Valuation allowance | 1,050,000 |  |
State |  |  |
Income Tax Contingency [Line Items] |  |  |
United States federal net operating loss carryforwards | 33,263,000 |  |
Valuation allowance | 705,000 | $ 656,000 |
Operating loss carryforwards | Foreign |  |  |
Income Tax Contingency [Line Items] |  |  |
Valuation Allowance, Deferred Tax Asset, Change in the Income Tax Expense (Benefit) | (2,001,000) |  |
Valuation increase (decrease) Foreign current impact and sale of subsidiary | $ 413 |  |

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