Summary of significant accounting policies (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 2,201,375	$ 2,004,438
Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 2,141,443	$ 1,829,286

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details