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Goodwill and other intangible assets - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization Of Intangible Assets	$ 795,000	$ 795,000
Goodwill increase decrease	0	$ 0
Goodwill	$ 804,428,000		$ 804,428,000

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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