Other Assets (Software package amortization) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other assets acquired [Line Items]
Gross Carrying Amount	$ 79,393	$ 81,862
Software Intangible assets
Other assets acquired [Line Items]
Gross Carrying Amount	139,836	121,519
Accumulated Amortization	60,443	39,657
Net Carrying Value	79,393	81,862
Software Intangible assets | Software development costs
Other assets acquired [Line Items]
Gross Carrying Amount	69,318	63,609
Accumulated Amortization	24,920	16,803
Net Carrying Value	44,398	46,806
Software Intangible assets | Software license costs
Other assets acquired [Line Items]
Gross Carrying Amount	47,747	37,165
Accumulated Amortization	25,006	14,164
Net Carrying Value	22,741	23,001
Software Intangible assets | Cloud computing arrangements
Other assets acquired [Line Items]
Gross Carrying Amount	22,771	20,745
Accumulated Amortization	10,517	8,690
Net Carrying Value	$ 12,254	$ 12,055