Summary Of Major Accounting Policies Allowance for credit losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 526,306	$ 525,804	$ 502,055	$ 511,024
Accounts Receivable, Allowance for Credit Loss	$ 2,100	2,000
Financing Receivable Allowance for Credit Losses Evaluation Period	3 years
Financing Receivable [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Accounts Receivable, Allowance for Credit Loss	$ 700	$ 300