Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Assets:
Contingent consideration — current	$ 127	$ 0
Contingent consideration — non-current	1,612	0
Recorded Value [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, Fair Value Disclosure	28,999
Assets:
Corporate-owned life insurance — current	1,989
Corporate-owned life insurance — non-current	2,371	3,673
Contingent consideration — current	127
Contingent consideration — non-current	1,612
Active markets for identical assets or liabilities (Level 1) [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Corporate-owned life insurance — non-current	0	0
Quoted prices in similar instruments and observable inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Corporate-owned life insurance — non-current	0	0
Active markets for unobservable inputs (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Corporate-owned life insurance — current	1,989
Corporate-owned life insurance — non-current	2,371	3,673
Contingent consideration — current	127
Contingent consideration — non-current	$ 1,612