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Stockholders Equity - Additional Information (Detail)	1 Months Ended		12 Months Ended
Stockholders Equity - Additional Information (Detail)	Dec. 31, 2019 USD ($) shares	Nov. 30, 2018 USD ($) shares	Dec. 31, 2022 USD ($) Vote $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Jan. 01, 2023 shares	Jan. 01, 2022 shares	Nov. 30, 2014 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Preferred stock, shares authorized			1,000,000
Common stock, shares authorized			137,500,000	137,500,000
Preferred stock, par value \| $ / shares			$ 0.01
Options granted with exercise prices less than current market value, Shares			0	0
Income tax benefit related to stock-based compensation included in net loss \| $			$ 0	$ 0
Common stock dividend payments \| $			0	$ 0
Unrecognized stock option compensation not yet recognized \| $			1,900,000
Proceed from exercise of stock option \| $			$ 3,000
Equity Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost, weighted average recognition period			2 years 9 months 18 days
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost, weighted average recognition period			2 years 8 months 12 days
Unrecognized compensation expense \| $			$ 2,200,000
Stock Incentive Plan 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock incentive plan, shares authorized							1,261,566
Stock incentive plan, annual increase as a percentage of outstanding common stock			3.00%
Stock incentive plan, options term			10 years
Stock incentive plan, options annual vesting percentage			25.00%
Stock incentive plan, vesting period			4 years
Stock Incentive Plan 2021 \| Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock incentive plan, options annual vesting percentage			25.00%
Stock incentive plan, vesting period			4 years
Stock Incentive Plan 2021 \| Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock incentive plan, shares authorized						1,294,725
Employee Stock Purchase Plan Twenty Fourteen
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock incentive plan, shares authorized			225,000
Percentage of compensation eligible for purchase of stock			15.00%
Maximum value of stock employee is permitted to purchase in any calendar year \| $			$ 25,000
Stock purchased by eligible employee			18,721	29,854
Maximum \| Stock Incentive Plan 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock incentive plan, shares authorized							6,056,291
Maximum \| Stock Incentive Plan 2021 \| Equity Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock incentive plan, shares authorized			3,500,000
Maximum \| Employee Stock Purchase Plan Twenty Fourteen
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock purchased by eligible employee, price per share \| $ / shares			$ 2.18	$ 2.91
Minimum \| Employee Stock Purchase Plan Twenty Fourteen
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock purchased by eligible employee, price per share \| $ / shares			$ 1.25	$ 2.44
Callcap Acquisition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Business acquisition, percentage of voting interests acquired		100.00%
Cash paid for business acquisition \| $		$ 25,000,000	$ 1,500,000
Consideration agreed to transfer \| $			$ 335,000,000
Shares issued in exchange for settling contractual obligation			1,340,000
Sonar Acquisition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Business acquisition, percentage of voting interests acquired	100.00%
Cash paid for business acquisition \| $	$ 8,500,000
Sonar Acquisition \| Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum percentage of authorized shares that may be issued			30.00%
Class B
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized			125,000,000	125,000,000
Votes per share \| Vote			1
Number of shares authorized to be repurchased								3,000,000
Total Share Repurchase Amount \| $					$ 10,800,000
Total Number of Shares Repurchased					5,000,000
Class B \| Employee Stock Purchase Plan Twenty Fourteen
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock purchase price as a percentage of fair value			95.00%
Class B \| Maximum \| Stock Incentive Plan 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock incentive plan, shares authorized			2,000,000
Class B \| Callcap Acquisition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock issued during the period, shares		3,400,000
Common stock issuance period		4 years
Class B \| Sonar Acquisition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock issued during the period, shares	1,000,000.0
Common stock issuance period	3 years
Class B \| Sonar Acquisition \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Future earnout consideration, shares	389,000
Class B \| Edenbrook Capital LLC [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Tender Offer Completed For Purchase of Share					10,000,000
Tender Offer Completed Value Per Share \| $ / shares					$ 2.15
Class A
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized			12,500,000	12,500,000
Votes per share \| Vote			25