Equity Plans - Performance Stock Units (Details) - USD ($)	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Equity Plans
Stock-based compensation	$ 12,740,000	$ 6,596,000
Performance Stock Units
Equity Plans
Number of shares, Granted	121,000
Vesting percentage of requisite service period		100.00%
Fair value of stock units	$ 3,400,000
Stock-based compensation	$ 0

Amount of noncash expense for share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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.

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Percentage of vesting of award under share-based payment arrangement.

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