Fair Value Measurements - Deferred Compensation Plan Assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Mar. 31, 2018 |
|---|---|---|
| Fair Value Disclosures [Abstract] | ||
| Deferred compensation plan assets | $ 1,557 | $ 574 |
| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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