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Short Term Borrowings and Credit Lines (Details) | Apr. 17, 2019 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2018 EUR (€)
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Remaining Borrowing Capacity | $ | $ 50,000,000 | $ 100,000,000 |
Unsecured And Uncommitted Credit Line1 [Member] | European Subsidiary [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | € |  |  | € 25,800,000
Unsecured And Uncommitted Credit Line2 [Member] | European Subsidiary [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | € |  |  | € 5,000,000
Unsecured And Uncommitted Line Of Credit [Member] | European Subsidiary [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ |  | $ 35,000,000 |

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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