Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Recurring Fair Value Measurements [Member] - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017
Assets
Total assets	$ 2,319	$ 1,506
Liabilities
Total liabilities	620	364
Deferred Compensation Plans [Member]
Liabilities
Total liabilities	574	364
Foreign Exchange Contracts [Member]
Liabilities
Total liabilities	46
Marketable Securities [Member]
Assets
Total assets	343	319
Cash Surrender Value of Life Insurance Policies [Member]
Assets
Total assets	1,976	1,187
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Assets
Total assets	343	319
Liabilities
Total liabilities	574	364
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Deferred Compensation Plans [Member]
Liabilities
Total liabilities	574	364
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Foreign Exchange Contracts [Member]
Liabilities
Total liabilities	0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Marketable Securities [Member]
Assets
Total assets	343	319
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Cash Surrender Value of Life Insurance Policies [Member]
Assets
Total assets	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets
Total assets	1,976	1,187
Liabilities
Total liabilities	46	0
Significant Other Observable Inputs (Level 2) [Member] | Deferred Compensation Plans [Member]
Liabilities
Total liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member] | Foreign Exchange Contracts [Member]
Liabilities
Total liabilities	46
Significant Other Observable Inputs (Level 2) [Member] | Marketable Securities [Member]
Assets
Total assets	0	0
Significant Other Observable Inputs (Level 2) [Member] | Cash Surrender Value of Life Insurance Policies [Member]
Assets
Total assets	1,976	1,187
Significant Unobservable Inputs (Level 3) [Member]
Assets
Total assets	0	0
Liabilities
Total liabilities	0	0
Significant Unobservable Inputs (Level 3) [Member] | Deferred Compensation Plans [Member]
Liabilities
Total liabilities	0	0
Significant Unobservable Inputs (Level 3) [Member] | Foreign Exchange Contracts [Member]
Liabilities
Total liabilities	0
Significant Unobservable Inputs (Level 3) [Member] | Marketable Securities [Member]
Assets
Total assets	0	0
Significant Unobservable Inputs (Level 3) [Member] | Cash Surrender Value of Life Insurance Policies [Member]
Assets
Total assets	$ 0	$ 0