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Short-Term and Long-Term Borrowings - Lines of Credit (Details) - USD ($) | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Line of Credit Facility [Line Items] |  |
Borrowing Limit | $ 340,000,000 |
Amount Outstanding | 0 | $ 91,163,000
Letters of Credit | 9,919,000 |
Amount Available | 330,081,000 | 235,678,000
OTC Credit Agreement |  |
Line of Credit Facility [Line Items] |  |
Borrowing Limit | 170,000,000 |
Amount Outstanding | 0 |
Letters of Credit | 0 |
Amount Available | 170,000,000 | 147,363,000
OTP Credit Agreement |  |
Line of Credit Facility [Line Items] |  |
Borrowing Limit | 170,000,000 |
Amount Outstanding | 0 |
Letters of Credit | 9,919,000 |
Amount Available | $ 160,081,000 | $ 88,315,000

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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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 https://asc.fasb.org/extlink&oid=120391452&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 https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Details
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