Composition of Certain Financial Statement Captions Composition of Certain Financial Statement Captions (Deferred Contract Costs) (Details) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Capitalized Contract Cost [Line Items]
Deferred contract costs	$ 37,928,000	$ 36,236,000
Capitalized contract cost, amount capitalized during period	12,751,000	11,201,000	$ 10,284,000
Amortization of deferred contract costs	11,059,000	8,746,000	7,494,000
Capitalized contract cost, accelerated amortization	1,784,000
Capitalized contract cost impairment	$ 0	$ 0	$ 0
Minimum
Capitalized Contract Cost [Line Items]
Deferred contract acquisition costs, amortization period	6 years
Maximum
Capitalized Contract Cost [Line Items]
Deferred contract acquisition costs, amortization period	15 years

Capitalized Contract Cost, Accelerated Amortization

No definition available.

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- Definition

Capitalized Contract Cost, Amount Capitalized During Period

+ References

No definition available.

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- Definition

Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126905575&loc=SL49131252-203054

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- Definition

Amortization period of cost capitalized in obtaining or fulfilling contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126905575&loc=SL49131251-203054

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- Definition

Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126905575&loc=SL49131252-203054

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