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Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		9 Months Ended
	Oct. 11, 2021	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation [Abstract]
Options vesting and exercisable period, maximum		8 years
Options termination period		10 years
Total stock-based compensation expense		$ 4.3	$ 4.3
Total unrecognized stock-based compensation expense		$ 14.0
Weighted average period over which total unrecognized stock-based compensation expense will be recognized		4 years 1 month 9 days
Subsequent Event
Subsequent Event [Line Items]
Cash dividends declared per share of common stock (in dollars per share)	$ 0.28

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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