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Subsequent Events (Narratives) (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
May 31, 2020 | Apr. 30, 2020 | Mar. 31, 2020 | Apr. 01, 2020
Debt Instruments [Abstract] |  |  |  |
Subsidiary cash dividend paid to parent |  |  | $ 0 |
Subsequent Event [Member] | Long Term Debt [Member] |  |  |  |
Debt Instruments [Abstract] |  |  |  |
Expansion of credit facility, borrowed amount |  | $ 50,000 |  |
Subsequent Event [Member] | Short Term Debt [Member] |  |  |  |
Debt Instruments [Abstract] |  |  |  |
Short term line of credit | $ 200,000 |  |  |
Debt Instrument, Interest Rate, Effective Percentage [Abstract] |  |  |  |
Sum of LIBOR and margin, maximum rate |  |  |  | 2.00%
Subsequent Event [Member] | Dividend Paid [Member] |  |  |  |
Debt Instruments [Abstract] |  |  |  |
Subsidiary cash dividend paid to parent |  | $ 18,600 |  |

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- Definition Amount of increase (decrease), classified as other, of the credit facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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