Other Assets (Software package amortization) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Other assets acquired [Line Items]
Gross Carrying Amount	$ 102,716	$ 93,404
Software Intangible assets
Other assets acquired [Line Items]
Gross Carrying Amount	160,679	142,988
Accumulated Amortization	57,963	49,584
Net Carrying Value	102,716	93,404
Software Intangible assets | Software development costs
Other assets acquired [Line Items]
Gross Carrying Amount	75,489	76,497
Accumulated Amortization	23,983	22,086
Net Carrying Value	51,506	54,411
Software Intangible assets | Software license costs
Other assets acquired [Line Items]
Gross Carrying Amount	47,950	42,868
Accumulated Amortization	23,658	18,048
Net Carrying Value	24,292	24,820
Software Intangible assets | Cloud computing arrangements
Other assets acquired [Line Items]
Gross Carrying Amount	37,240	23,623
Accumulated Amortization	10,322	9,450
Net Carrying Value	$ 26,918	$ 14,173