Fair Value Measurements (Deferred compensation plan) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Mar. 31, 2019 |
|
| Fair Value Disclosures [Abstract] | |||||
| Plan assets | $ 3,530 | $ 3,530 | $ 1,557 | ||
| Deferred compensation liability | 3,577 | 3,577 | $ 1,520 | ||
| Deferred compensation expense (income) | (228) | $ (210) | 139 | $ (164) | |
| Unrealized gain (loss) | $ 21 | $ 229 | $ 116 | $ 197 | |
| X | ||||||||||
- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. No definition available.
|
| 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
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of unrealized gain (loss) recognized in the income statement on unsold other securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|