Intangibles - Customer Relationships (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite lived intangible assets
Amortization of customer relationships	$ 70,672	$ 70,672	$ 70,672
Finite lived intangible assets rollforward
Customer relationships	1,215,431	1,286,103
Customer relationships
Finite lived intangible assets
Amortization of customer relationships	71,000	71,000	$ 71,000
Finite lived intangible assets rollforward
Gross carrying value	1,555,000	1,555,000
Accumulated amortization	(339,569)	(268,897)
Customer relationships	$ 1,215,431	$ 1,286,103
Customer relationships | Weighted Average
Finite lived intangible assets
Amortization period	18 years