Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Income before income taxes	$ 700,555,000	$ 637,796,000	$ 389,781,000
Unrecognized tax benefits that would impact the effective tax rate	0	0
Interest income accrued on unrecognized tax benefits	0	0
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	4,800,000
Geographic distribution, foreign
Operating Loss Carryforwards [Line Items]
Income before income taxes	$ 27,700,000	$ 23,100,000	$ 15,400,000