Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Intangible assets
Gross Carrying Amount, Intangible assets	$ 537,509	$ 537,509
Accumulated Amortization and Impairment, Intangible assets	498,967	493,564
Total Net Intangible Assets	38,542	43,945
Technology
Intangible assets
Gross Carrying Amount, Intangible assets	355,928	355,928
Accumulated Amortization and Impairment, Intangible assets	325,145	321,923
Total Net Intangible Assets	30,783	34,005
Customer relationship
Intangible assets
Gross Carrying Amount, Intangible assets	146,925	146,925
Accumulated Amortization and Impairment, Intangible assets	139,166	137,649
Total Net Intangible Assets	7,759	9,276
Trademarks and tradenames
Intangible assets
Gross Carrying Amount, Intangible assets	30,910	30,910
Accumulated Amortization and Impairment, Intangible assets	30,910	30,269
Total Net Intangible Assets		641
Other Intangible Assets
Intangible assets
Gross Carrying Amount, Intangible assets	3,746	3,746
Accumulated Amortization and Impairment, Intangible assets	$ 3,746	3,723
Total Net Intangible Assets		$ 23