v3.7.0.1

Income Taxes - Reconciliation of Income Taxes at Statutory Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	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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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)
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