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Fair Value Measurements Narrative (Details) - USD ($) | Jun. 30, 2017 | Mar. 31, 2017
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Distributions paid | $ 0 | $ 0
Recorded liability | 13,000 |
Fair Value, Measurements, Recurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Non-qualified deferred compensation asset | 6,816,000 | 6,662,000
Non-qualified deferred compensation liability | 4,206,000 | $ 4,140,000
Deferred compensation liability, current | 883,000 |
Other long term liabilities | $ 3,323,000 |

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