Summary of Significant Accounting Policies (Schedule Of Accounts Receivable Current Overdue Details) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts Receivable Current Overdue Details [Line Items]
Accounts receivable, net	$ 94,908	$ 94,528
Less than 179 days
Accounts Receivable Current Overdue Details [Line Items]
Accounts receivable, net	79,155	78,805
180-359 days
Accounts Receivable Current Overdue Details [Line Items]
Accounts receivable, net	7,437	7,569
360 days and greater
Accounts Receivable Current Overdue Details [Line Items]
Accounts receivable, net	$ 8,316	$ 8,154

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4531-111522

Name:	us-gaap_AccountsReceivableGrossCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant