Pension and Other Post-retirement Benefit Plans - Narrative (Details) $ in Thousands	12 Months Ended
	Mar. 31, 2018 USD ($) plan	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of Fiscal Years	10 years
Number of defined benefit plans | plan	11
Gains net of the employer matches related to the deferred compensation plan	$ 206	$ 176	$ 5
Total benefits accrued	2,100	1,800
Matched contribution of the entity	2,200	2,400	$ 2,100
Defined Benefit Plan Accumulated Other Comprehensive Income (Loss) Tax	$ 2,300	$ 2,700
Maximum
Defined Benefit Plan Disclosure [Line Items]
Company matched contribution (as a percent)	6.00%
Pension
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	$ 429
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	6,200
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year	92
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	$ 155
Number of defined benefit plans | plan	2
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 55
Europe | Pension
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans | plan	6
Singapore | Pension
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans | plan	1
Mexico | Pension
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans | plan	2
Japan | Pension
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans | plan	2