Goodwill and Other Intangible Assets (Schedule of Acquired Identifiable Intangible Assets and Capitalized Purchased Software Costs) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 170,346	$ 169,336
Accumulated Amortization	(119,873)	(118,314)
Net Carrying Amount	50,473	51,022
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	100,081	100,105
Accumulated Amortization	(73,121)	(71,947)
Net Carrying Amount	26,960	28,158
Capitalized Purchased Software Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	46,097	45,062
Accumulated Amortization	(30,842)	(30,463)
Net Carrying Amount	15,255	14,599
Technology Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	15,500	15,500
Accumulated Amortization	(15,500)	(15,500)
Net Carrying Amount	0	0
Trade Names and Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,800	7,800
Accumulated Amortization	0	0
Net Carrying Amount	7,800	7,800
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	868	869
Accumulated Amortization	(410)	(404)
Net Carrying Amount	$ 458	$ 465