Overview and Summary of Significant Accounting Policies - Narrative (Details)						3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Apr. 19, 2021 USD ($) shares	Apr. 06, 2021 USD ($) $ / shares shares	Nov. 23, 2020 USD ($)	Nov. 19, 2020 USD ($) $ / shares shares	Nov. 12, 2020	Dec. 31, 2021 USD ($) segment	Sep. 30, 2021 $ / shares	Jun. 30, 2021 $ / shares	Jun. 30, 2021 $ / shares	Sep. 30, 2021 $ / shares	Dec. 31, 2021 USD ($) segment $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
Business Acquisition [Line Items]
Stockholders' equity note, stock split, conversion ratio					0.794
Repurchase of common stock											$ 1,251,000	$ 0	$ 0
Proceeds from issuance of common stock											64,269,000	272,813,000	0
Repurchase of outstanding warrants											$ 26,894,000	0	0
Number of reportable segments | segment						2					2
Number of operating segments | segment						2					2
Inventory, gross						$ 2,100,000					$ 2,100,000	4,200,000
Other depreciation and amortization											3,100,000	2,900,000	2,500,000
Advertising expense											1,800,000	1,000,000	400,000
Goodwill, impairment loss											$ 0	$ 0	$ 0
Share-based compensation arrangement by share-based payment award, award vesting period											5 years
Earnings per share, basic (in dollars per share) | $ / shares							$ (0.08)	$ (0.26)	$ (0.49)	$ (0.57)	$ (0.65)	$ 0.04	$ (0.17)
Earnings per share, diluted (in dollars per share) | $ / shares							$ (0.08)	$ (0.26)	$ (0.49)	$ (0.57)	$ (0.65)	$ 0.04	$ (0.17)
Weighted-average common shares outstanding, basic (in shares) | shares											66,374,000	41,642,000	37,729,000
Weighted-average shares of common stock outstanding, diluted (in shares) | shares											66,374,000	42,877,000	37,729,000
Enlightenment Capital Solutions Fund II LP
Business Acquisition [Line Items]
Repurchase of common stock	$ 1,300,000
Stock repurchased during period (in shares) | shares	39,682
Repurchase of outstanding warrants	$ 26,900,000
Warrant repurchased during period, shares (in shares) | shares	900,970
Service Based RSU Awards
Business Acquisition [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period											3 years
Service Based RSU Awards | Maximum
Business Acquisition [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period											3 years
Performance Shares
Business Acquisition [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period											3 years
Executive Officer | Performance Shares
Business Acquisition [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period											3 years
Executive Officer | Share-based Payment Arrangement, Tranche One | Service Based RSU Awards
Business Acquisition [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage											30.00%
Executive Officer | Share-based Payment Arrangement, Tranche Two | Service Based RSU Awards
Business Acquisition [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage											30.00%
Executive Officer | Share-based Payment Arrangement, Tranche Three | Service Based RSU Awards
Business Acquisition [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage											40.00%
Exchangeable Redeemable Preferred Stock
Business Acquisition [Line Items]
Conversion of preferred stock to common stock			$ 108,900,000
Class B Common Stock
Business Acquisition [Line Items]
Stockholders' equity note, stock split, conversion ratio											1.259446
Earnings per share, basic (in dollars per share) | $ / shares													$ (0.17)
Earnings per share, diluted (in dollars per share) | $ / shares													$ (0.17)
Weighted-average common shares outstanding, basic (in shares) | shares													3,204
Weighted-average shares of common stock outstanding, diluted (in shares) | shares													3,204
Class A Common Stock
Business Acquisition [Line Items]
Stockholders' equity note, stock split, conversion ratio											1.259446
Earnings per share, basic (in dollars per share) | $ / shares													$ (0.17)
Earnings per share, diluted (in dollars per share) | $ / shares													$ (0.17)
Weighted-average common shares outstanding, basic (in shares) | shares													34,525
Weighted-average shares of common stock outstanding, diluted (in shares) | shares													34,525
IPO
Business Acquisition [Line Items]
Number of shares issued (in shares) | shares				17,200,000
Share price (in dollars per share) | $ / shares				$ 17.00
Net proceeds from initial public offering				$ 272,800,000
Repayments of debt				21,000,000
IPO | Exchangeable Redeemable Preferred Stock
Business Acquisition [Line Items]
Conversion of preferred stock to common stock				108,900,000
Secondary Public Offering
Business Acquisition [Line Items]
Sale of stock, number of shares issued in transaction (in shares) | shares		9,100,000
Sale of stock, price per share (in dollars per share) | $ / shares		$ 33.00
Sale of stock, number of shares issued by certain existing shareholders (in shares) | shares		7,000,000
Proceeds from issuance of common stock		$ 64,300,000
Telos ID
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired						100.00%					100.00%
Telos ID | IPO | Class B Common Stock
Business Acquisition [Line Items]
Repurchase of common stock				$ 30,000,000