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v3.22.2.2

Long-term debt - Narrative (Details) - USD ($) | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Instrument [Line Items] |  |
Cash and cash equivalents | $ 376,641,000 | $ 56,989,000
Amended and Restated Competitive Advance and Revolving Credit Agreement | Line of Credit | Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Unused borrowing capacity | 1,490,000,000 |
Maximum borrowing capacity under credit facility | $ 1,510,000,000 |

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