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Fair Value Measurements Schedule of Fair Value Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Mar. 31, 2019
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Non-qualified deferred compensation asset | $ 7,657 | $ 7,300
Non-qualified deferred compensation liability | (4,618) | (4,447)
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Non-qualified deferred compensation asset | 7,657 | 7,300
Non-qualified deferred compensation liability | (4,618) | $ (4,447)
Non-Designated Derivative Contracts |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative contracts assets | 165 |
Non-Designated Derivative Contracts | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative contracts assets | 165 |
Derivatives designated as cash flow hedges | Designated Derivative Contracts |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative contracts assets | 273 |
Derivatives designated as cash flow hedges | Designated Derivative Contracts | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative contracts assets | $ 273 |

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