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Intangible Assets, Goodwill and Other (Tables)
 9 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets and Goodwill [Table Text Block]
The following table summarizes other intangible assets as of the dates presented:

Other Intangible Assets
(in thousands)GrossAccumulated AmortizationNet
Balance, December 31, 2022$54,561 $(49,816)$4,745 
Net additions710,230 — 710,230 
Amortization— (12,660)(12,660)
Balance, March 31, 2023764,791 (62,476)702,315 
Amortization— (35,553)(35,553)
Balance, June 30, 2023764,791 (98,029)666,762 
Amortization— (29,879)(29,879)
Balance, September 30, 2023$764,791 $(127,908)$636,883 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] The table below presents the forecasted amortization expense for intangible assets at September 30, 2023:
(in thousands)
YearExpected Amortization
Remainder of 2023
$33,205 
2024119,431 
2025105,458 
202692,545 
202779,632 
Thereafter206,612 
Total intangible assets$636,883