v3.7.0.1

Income Taxes - Reconciliation of Income Taxes at Statutory Rate (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2015
Income Tax Disclosure [Abstract] |  |  |
United States statutory income tax expense (at 35%) | $ 74,444 | $ 63,678 | $ 87,269
State income taxes, net of federal effect | 3,677 | 3,282 | 3,206
Nondeductible expenses, domestic manufacturing deduction and other | 1,993 | (1,407) | 8,128
Legal proceedings charge - European Competition Investigations - See Note 18 | 7,873 | 668 | 0
Goodwill impairment - See Note 5 | 3,812 | 6,475 | 5,194
Effect of foreign operations | (39,377) | (28,845) | (37,775)
Valuation allowance | 2,050 | 6,262 | 1,792
Income tax expense | $ 54,472 | $ 50,113 | $ 67,814

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
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