EverQuote (EVER) 10-Q 8 Nov 21 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page	9 Months Ended
	Sep. 30, 2021shares
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Trading Symbol	EVER
Entity Registrant Name	EverQuote, Inc.
Entity Central Index Key	0001640428
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Document Quarterly Report	true
Entity Shell Company	false
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Interactive Data Current	Yes
Title of 12(b) Security	Class A Common Stock
Document Transition Report	false
Entity Address, State or Province	MA
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	DE
Entity File Number	001-38549
Entity Address, Address Line One	210 Broadway
Entity Address, City or Town	Cambridge
Entity Address, Postal Zip Code	02139
Entity Tax Identification Number	26-3101161
City Area Code	855
Local Phone Number	522-3444
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	23,176,001
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	6,407,678

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 41,773	$ 42,870
Accounts receivable, net	44,517	46,079
Prepaid expenses and other current assets	11,483	8,452
Total current assets	97,773	97,401
Property and equipment, net	5,979	6,173
Goodwill	21,666	9,794
Acquired intangible assets, net	10,872	3,366
Operating lease right-of-use assets	7,966	9,621
Other assets	4,291	2,695
Total assets	148,547	129,050
Current liabilities:
Accounts payable	25,057	32,964
Accrued expenses and other current liabilities	20,186	9,421
Deferred revenue	1,892	1,869
Operating lease liabilities	2,785	2,593
Total current liabilities	49,920	46,847
Operating lease liabilities, net of current portion	6,214	8,093
Other long-term liabilities	6,365	3,128
Total liabilities	62,499	58,068
Commitments and contingencies (Note 10)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued and outstanding
Additional paid-in capital	215,179	189,172
Accumulated other comprehensive income (loss)	5	(7)
Accumulated deficit	(129,165)	(118,211)
Total stockholders' equity	86,048	70,982
Total liabilities and stockholders' equity	148,547	129,050
Class A Common Stock [Member]
Stockholders' equity:
Common stock	23	21
Total stockholders' equity	23	21
Class B Common Stock [Member]
Stockholders' equity:
Common stock	6	7
Total stockholders' equity	$ 6	$ 7

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Preferred Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Preferred stock, authorized	10,000,000	10,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Class A Common Stock [Member]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	220,000,000	220,000,000
Common stock, shares issued	23,176,001	20,784,065
Common stock, shares outstanding	23,176,001	20,784,065
Class B Common Stock [Member]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	6,407,678	7,429,502
Common stock, shares outstanding	6,407,678	7,429,502

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenue	$ 107,563	$ 89,977	$ 316,448	$ 249,643
Cost and operating expenses:
Cost of revenue	5,994	5,378	17,758	15,690
Sales and marketing	92,545	73,598	265,724	204,663
Research and development	9,259	8,149	26,885	21,574
General and administrative	6,731	5,661	18,527	15,134
Acquisition-related	819	480	1,005	480
Total cost and operating expenses	115,348	93,266	329,899	257,541
Loss from operations	(7,785)	(3,289)	(13,451)	(7,898)
Other income (expense):
Interest income	9	18	33	176
Other income (expense), net	(6)	87	(46)	288
Total other income (expense), net	3	105	(13)	464
Loss before income taxes	(7,782)	(3,184)	(13,464)	(7,434)
Benefit from income taxes	2,510		2,510
Net loss	$ (5,272)	$ (3,184)	$ (10,954)	$ (7,434)
Net loss per share, basic	$ (0.18)	$ (0.12)	$ (0.38)	$ (0.27)
Net loss per share, diluted	$ (0.18)	$ (0.12)	$ (0.38)	$ (0.27)
Weighted average common shares outstanding, basic	29,277	27,526	28,871	27,102
Weighted average common shares outstanding, diluted	29,277	27,526	28,871	27,102
Net loss	$ (5,272)	$ (3,184)	$ (10,954)	$ (7,434)
Other comprehensive income (loss):
Foreign currency translation adjustment	(10)		12
Comprehensive loss	$ (5,282)	$ (3,184)	$ (10,942)	$ (7,434)

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Class A Common Stock [Member]	Class B Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance at Dec. 31, 2019	$ 51,770	$ 15	$ 12	$ 158,752	$ (107,009)	$ 0
Beginning balance, shares at Dec. 31, 2019		14,635,834	11,802,341
Issuance of common stock upon exercise of stock options	1,364			1,364
Issuance of common stock upon exercise of stock options, shares		214,179
Vesting of restricted stock units, shares		329,897
Stock-based compensation expense	4,540			4,540
Transfer of Class B common stock to Class A common stock		$ 2	$ (2)
Transfer of Class B common stock to Class A common stock, shares		1,388,536	(1,388,536)
Net loss	(1,442)				(1,442)
Ending balance at Mar. 31, 2020	56,232	$ 17	$ 10	164,656	(108,451)	0
Ending balance, shares at Mar. 31, 2020		16,568,446	10,413,805
Beginning balance at Dec. 31, 2019	51,770	$ 15	$ 12	158,752	(107,009)	0
Beginning balance, shares at Dec. 31, 2019		14,635,834	11,802,341
Net loss	(7,434)
Ending balance at Sep. 30, 2020	67,223	$ 20	$ 7	181,639	(114,443)	0
Ending balance, shares at Sep. 30, 2020		20,346,926	7,429,502
Beginning balance at Dec. 31, 2019	51,770	$ 15	$ 12	158,752	(107,009)	0
Beginning balance, shares at Dec. 31, 2019		14,635,834	11,802,341
Net loss	(11,200)
Ending balance at Dec. 31, 2020	70,982	$ 21	$ 7	189,172	(118,211)	(7)
Ending balance, shares at Dec. 31, 2020		20,784,065	7,429,502
Beginning balance at Mar. 31, 2020	56,232	$ 17	$ 10	164,656	(108,451)	0
Beginning balance, shares at Mar. 31, 2020		16,568,446	10,413,805
Issuance of common stock upon exercise of stock options	954			954
Issuance of common stock upon exercise of stock options, shares		126,375
Vesting of restricted stock units, shares		254,265
Stock-based compensation expense	6,250			6,250
Transfer of Class B common stock to Class A common stock		$ 2	$ (2)
Transfer of Class B common stock to Class A common stock, shares		1,983,220	(1,983,220)
Net loss	(2,808)				(2,808)
Ending balance at Jun. 30, 2020	60,628	$ 19	$ 8	171,860	(111,259)	0
Ending balance, shares at Jun. 30, 2020		18,932,306	8,430,585
Contingent consideration to be settled in Class A common stock	1,335			1,335
Issuance of common stock upon exercise of stock options	1,244			1,244
Issuance of common stock upon exercise of stock options, shares		194,099
Vesting of restricted stock units, shares		219,438
Stock-based compensation expense	7,200			7,200
Transfer of Class B common stock to Class A common stock		$ 1	$ (1)
Transfer of Class B common stock to Class A common stock, shares		1,001,083	(1,001,083)
Net loss	(3,184)				(3,184)
Ending balance at Sep. 30, 2020	67,223	$ 20	$ 7	181,639	(114,443)	0
Ending balance, shares at Sep. 30, 2020		20,346,926	7,429,502
Beginning balance at Dec. 31, 2020	70,982	$ 21	$ 7	189,172	(118,211)	(7)
Beginning balance, shares at Dec. 31, 2020		20,784,065	7,429,502
Issuance of common stock upon exercise of stock options	1,272			1,272
Issuance of common stock upon exercise of stock options, shares		213,317
Vesting of restricted stock units, shares		332,311
Stock-based compensation expense	7,520			7,520
Transfer of Class B common stock to Class A common stock		$ 1	$ (1)
Transfer of Class B common stock to Class A common stock, shares		1,021,824	(1,021,824)
Foreign currency translation adjustment	15					15
Net loss	(3,801)				(3,801)
Ending balance at Mar. 31, 2021	75,988	$ 22	$ 6	197,964	(122,012)	8
Ending balance, shares at Mar. 31, 2021		22,351,517	6,407,678
Beginning balance at Dec. 31, 2020	70,982	$ 21	$ 7	189,172	(118,211)	(7)
Beginning balance, shares at Dec. 31, 2020		20,784,065	7,429,502
Foreign currency translation adjustment	12
Net loss	(10,954)
Ending balance at Sep. 30, 2021	86,048	$ 23	$ 6	215,179	(129,165)	5
Ending balance, shares at Sep. 30, 2021		23,176,001	6,407,678
Beginning balance at Mar. 31, 2021	75,988	$ 22	$ 6	197,964	(122,012)	8
Beginning balance, shares at Mar. 31, 2021		22,351,517	6,407,678
Issuance of common stock upon exercise of stock options	452			452
Issuance of common stock upon exercise of stock options, shares		56,786
Vesting of restricted stock units		$ 1		(1)
Vesting of restricted stock units, shares		260,340
Stock-based compensation expense	7,089			7,089
Foreign currency translation adjustment	7					7
Net loss	(1,881)				(1,881)
Ending balance at Jun. 30, 2021	81,655	$ 23	$ 6	205,504	(123,893)	15
Ending balance, shares at Jun. 30, 2021		22,668,643	6,407,678
Issuance of common stock upon exercise of stock options	1,367			1,367
Issuance of common stock upon exercise of stock options, shares		187,386
Vesting of restricted stock units, shares		300,388
Issuance of common stock to settle contingent consideration liability		19,584
Stock-based compensation expense	8,308			8,308
Foreign currency translation adjustment	(10)					(10)
Net loss	(5,272)				(5,272)
Ending balance at Sep. 30, 2021	$ 86,048	$ 23	$ 6	$ 215,179	$ (129,165)	$ 5
Ending balance, shares at Sep. 30, 2021		23,176,001	6,407,678

Condensed Consolidated Stateme

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net loss	$ (10,954)	$ (7,434)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization expense	3,608	2,174
Stock-based compensation expense	22,957	17,990
Change in fair value of contingent consideration	136	0
Deferred taxes	(2,510)
Provision for (recovery of) bad debt	(50)	15
Unrealized foreign currency transaction (gains) losses	15	0
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	1,662	(9,328)
Prepaid expenses and other current assets	(941)	2,048
Operating lease right-of-use assets	2,036	0
Other assets	(1,089)	(222)
Accounts payable	(8,622)	10,030
Accrued expenses and other current liabilities	9,815	(2,325)
Deferred revenue	23	191
Operating lease liabilities	(2,068)	0
Other long-term liabilities	30	764
Net cash provided by operating activities	14,048	13,903
Cash flows from investing activities:
Acquisition of property and equipment, including costs capitalized for development of internal-use software	(2,275)	(2,708)
Acquisition of business	(15,955)	(14,930)
Net cash used in investing activities	(18,230)	(17,638)
Cash flows from financing activities:
Proceeds from exercise of stock options	3,091	3,562
Net cash provided by financing activities	3,091	3,562
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(6)	0
Net decrease in cash, cash equivalents and restricted cash	(1,097)	(173)
Cash, cash equivalents and restricted cash at beginning of period	43,120	46,304
Cash, cash equivalents and restricted cash at end of period	42,023	46,131
Supplemental disclosure of noncash investing and financing information:
Fair value of contingent consideration in connection with acquisition included in equity	0	1,335
Fair value of contingent consideration in connection with acquisition included in accrued expenses and other long-term liabilities	3,784	416
Acquisition of property and equipment included in accounts payable	47	42
Operating lease liabilities arising from obtaining right-of-use assets	383	0
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	41,773	45,881
Restricted cash (included in other assets)	250	250
Cash, cash equivalents and restricted cash at end of period	$ 42,023	$ 46,131

Nature of the Business and Basi

Nature of the Business and Basis of Presentation	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of the Business and Basis of Presentation	1. Nature of the Business and Basis of Presentation EverQuote, Inc. (the “Company”) was incorporated in the state of Delaware in 2008. Through its internet websites, the Company operates an online marketplace for consumers shopping for auto, home and renters, life, health and commercial insurance. The Company generates revenue by selling consumer referrals to insurance provider customers, consisting of carriers and agents, and indirect distributors in the United States. The Company is subject to a number of risks and uncertainties common to companies in similar industries and stages of development including, but not limited to, rapid technological changes, competition from substitute products and services from larger companies, protection of proprietary technology, customer concentration, patent litigation, the need to obtain additional financing to support growth and dependence on third parties and key individuals. In addition, the Company is subject to risks and uncertainties relating to the ongoing coronavirus (“COVID-19”) COVID-19 shelter-in-place d COVID-19 pandemic The accompanying condensed consolidated financial statements have been prepared on the basis of continuity of operations, realization of assets and the satisfaction of liabilities and commitments in the ordinary course of business. Since inception, the Company has incurred operating losses, including net losses of $11.0 million for the nine months ended September 30, 2021 and $11.2 million for the year ended December 31, 2020. As of September 30, 2021, the Company had an accumulated deficit of $129.2 million. As of the issuance date of these condensed consolidated financial statements, the Company expects that its cash and cash equivalents will be sufficient to fund its operating expenses and capital expenditure requirements for at least the next 12 months from the issuance date of the condensed consolidated financial statements, without considering borrowing availability of up to $25.0 million under the Company’s revolving line of credit. The Company’s condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). Any reference in these notes to applicable guidance is meant to refer to the authoritative GAAP as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Update (“ASU”) of the Financial Accounting Standards Board (“FASB”). The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Unaudited Interim Financial Information The condensed consolidated balance sheet at December 31, 2020 was derived from audited consolidated financial statements but does not include all disclosures required by GAAP. The accompanying unaudited condensed consolidated financial statements as of September 30, 2021 and for the three and nine months ended September 30, 2021 and 2020 have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial statements. Certain information and footnote disclosures normally included in the consolidated financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto for the year ended December 31, 2020 included in the Company’s Annual Report on Form 10-K for Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. Significant estimates and assumptions reflected in these condensed consolidated financial statements include, but are not limited to, revenue recognition and collectability of accounts receivable, the expensing and capitalization of website and software development costs, goodwill and acquired intangible assets, commissions receivable, the contingent consideration liabilities, the valuation of stock-based awards and income taxes. The Company bases its estimates on historical experience, known trends and other market-specific or other relevant factors that it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates, as there are changes in circumstances, facts and experience. Changes in estimates are recorded in periods in which they become known. Actual results may differ from those estimates or assumptions. Due to the COVID-19 Concentrations of Credit Risk and of Significant Customers Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts and commissions receivable. The Company maintains its cash and cash equivalents at accredited financial institutions. The Company does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships. The Company sells its consumer referrals to insurance provider customers, consisting of carriers and agents, and indirect distributors in the United States. For the three months ended September 30, 2021, one customer represented 17% of total revenue. For the nine months ended September 30, 2021, one customer represented 18% of total revenue. For the three months ended September 30, 2020, one customer represented 26% of total revenue. For the nine months ended September 30, 2020, one customer represented 23% of total revenue. As of September 30, 2021, one customer accounted for 15% of the total accounts and commissions receivable balances. As of December 31, 2020 , one customer accounted for 10% of the total accounts and commissions receivable balances. Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Financial assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy, of which the first two are considered observable and the last is considered unobservable: • Level 1—Quoted prices in active markets for identical assets or liabilities. • Level 2—Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data. • Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques. The Company’s cash equivalents and contingent consideration liabilities are carried at fair value, determined according to the fair value hierarchy described above (see Note 4). The carrying values of the Company’s accounts receivable, commissions receivable and commissions payable, accounts payable and accrued expenses and other current liabilities approximate their fair values due to the short-term nature of these assets and liabilities. Restricted Cash As of both September 30, 2021 and December 31, 2020, restricted cash consisted of $0.3 million deposited in a separate restricted bank account as a security deposit for the Company’s corporate credit cards. Restricted cash accounts are classified within other assets. Cash, cash equivalents and restricted cash as of December 31, 2020 as shown in the condensed consolidated statement of cash flows of $43.1 million includes cash and cash equivalents of $42.9 million and restricted cash of $0.3 million. Accounts Receivable The Company provides credit to customers in the ordinary course of business and believes its credit policies are prudent and reflect industry practices and business risk. The Company monitors economic conditions to identify facts or circumstances that may indicate that its receivables are at risk of collection. The Company provides reserves against accounts receivable for estimated losses, if any, that may result from a customer’s inability to pay based on the composition of its accounts receivable, current economic conditions, and historical credit loss activity. Amounts determined to be uncollectible are charged or written-off Commissions Receivable Commissions receivable are contract assets that represent estimated variable consideration for commissions to be received from insurance carriers for performance obligations that have been satisfied. The current portion of commissions receivable (included within prepaid expenses and other current assets) are estimated commissions expected to be received within one year, while the non-current portion (non-current)) While the Company is exposed to credit losses due to the non-payment Commissions Payable Commissions payable represent the estimated share of policy commissions earned by the Company’s agents. The current portion of commissions payable (included within accrued expenses and other current liabilities) are estimated commissions expected to be paid within one year, while the non-current portion Goodwill and Acquired Intangible Assets The Company records goodwill when consideration paid in a business acquisition exceeds the value of the net assets acquired. The Company’s estimates of fair value are based upon assumptions believed to be reasonable at that time but that are inherently uncertain and unpredictable. Assumptions may be incomplete or inaccurate, and unanticipated events or circumstances may occur, which may affect the accuracy or validity of such assumptions, estimates or actual results. During the measurement period, which extends no later than one year from the acquisition date, the Company may record certain adjustments to the carrying value of the assets acquired and liabilities assumed with the corresponding offset to goodwill. After the measurement period, all adjustments are recorded in the consolidated statements of operations and comprehensive loss as operating expenses or income. Goodwill is not amortized, but rather is tested for impairment annually, or more frequently if facts and circumstances warrant a review, such as significant underperformance of the business in relation to expectations, significant negative industry or economic trends and significant changes or planned changes in the use of the assets. The Company assesses both the existence of potential impairment and the amount of impairment loss by comparing the fair value of the reporting unit with its carrying amount, including goodwill. Intangible assets are recorded at their estimated fair values at the date of acquisition. The Company amortizes acquired intangible assets over their estimated useful lives based on the pattern of consumption of the economic benefits or, if that pattern cannot be readily determined, on a straight-line basis. Revenue Recognition The Company derives its revenue by selling consumer referrals to its insurance provider customers, including insurance carriers, agents and indirect distributors. To determine revenue recognition for arrangements that the Company determines are within the scope of the revenue standard, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the Company satisfies a performance obligation. The Company only applies the five-step model to contracts when collectability of the consideration to which the Company is entitled in exchange for the goods or services it transfers to the customer is determined to be probable. Amounts are recorded as accounts receivable when the Company’s right to consideration is unconditional. The Company does not assess whether a contract has a significant financing component if the expectation at contract inception is that the period between payment by the customer and the transfer of the promised goods or services to the customer will be one year or less. The Company recognizes revenue when it satisfies its performance obligations by delivering the referrals to its customers in an amount that reflects the consideration to which it expects to be entitled in exchange for those referrals. The Company presents disaggregated revenue from contracts with customers by distribution channel as the distribution channel impacts the nature and amount of the Company’s revenue and by vertical market segment. Total revenue is comprised of revenue from the following distribution channels: Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Direct channels 89 % 93 % 90 % 93 % Indirect channels 11 % 7 % 10 % 7 % 100 % 100 % 100 % 100 % Total revenue is comprised of revenue from the following insurance verticals (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Automotive $ 89,666 $ 74,779 $ 260,505 $ 207,014 Other 17,897 15,198 55,943 42,629 Total Revenue $ 107,563 $ 89,977 $ 316,448 $ 249,643 The Company has elected to apply the practical expedient in ASC 606 to expense incremental direct costs of obtaining a contract, consisting of sales commissions, as incurred as the expected period of benefit of the sales commissions is one year or less. At September 30, 2021, the Company had not capitalized any costs to obtain its contracts. Amounts received prior to satisfying the revenue recognition criteria are recorded as deferred revenue in the accompanying balance sheets. Amounts expected to be recognized as revenue within 12 months of the balance sheet date are classified as current deferred revenue. Deferred revenue was $1.9 million as of September 30, 2021 and December 31, 2020. During the nine months ended September 30, 2021, the Company recognized revenue of $1.4 million that was included in the contract liability balance (deferred revenue) at December 31, 2020. The Company recognizes deferred revenue by first allocating from the beginning deferred revenue balance to the extent that the beginning deferred revenue balance exceeds the revenue to be recognized. Billings during the period are added to the deferred revenue balance to be recognized in future periods. Advertising Expense Advertising expense consists of variable costs that are related to attracting consumers to the Company’s marketplace and generating consumer quote requests, and promoting its marketplace to insurance carriers and agents. The Company expenses advertising costs as incurred and such costs are included in sales and marketing expense in the accompanying statements of operations and comprehensive loss. During the three months ended September 30, 2021 and 2020, advertising expense totaled $75.2 million and $60.5 million, respectively. During the nine months ended September 30, 2021 and 2020, advertising expense totaled $219.8 million and $172.9 million, respectively. Net Income (Loss) per Share Basic net income (loss) per common share is computed by dividing the net income (loss) by the weighted average number of shares of common stock outstanding for the period. Diluted net income (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period, including potential dilutive common shares assuming the dilutive effect of outstanding stock options and unvested restricted stock units. For periods in which the Company reported a net loss, diluted net loss per common share is the same as basic net loss per common share, since dilutive common shares are not assumed to have been issued if their effect is anti-dilutive. The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect: September 30, 2021 2020 Options to purchase common stock 1,708,947 2,773,222 Unvested restricted stock units 2,796,380 3,646,253 4,505,327 6,419,475 The table above does not include shares issuable upon settlement of contingent consideration for the Company’s Crosspointe and PolicyFuel acquisitions (see Note 3). Such shares are also not included in the Company’s calculation of basic or diluted net loss per common share. The Company has two classes of common stock outstanding: Class A common stock and Class B common stock. As more fully described in Note 8, the rights of the holders of Class A and Class B common stock are identical, except with respect to voting and conversion. Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder at any time. The Company allocates undistributed earnings attributable to common stock between the common stock classes on a one-to-one a Recently Adopted Accounting Pronouncements In December 2019, the FASB issued ASU No. 2019-12,

Acquisition

Acquisition	9 Months Ended
	Sep. 30, 2021
Business Combinations [Abstract]
Acquisition	3. Acquisitions PolicyFuel On August 13, 2021, the Company completed the acquisition of Policy Fuel, LLC and its affiliated entities (“PolicyFuel”), a policy-sales-as-a-service direct-to-consumer The PolicyFuel acquisition was accounted for as a purchase of a business under ASC Topic 805, Business Combinations as of the acquisition date , net of cash acquired estimated as of the acquisition date the next of each of three twelve-month revenue targets. The number of shares that may be issued at maximum performance is based on a total dollar value of $12.9 million; 50% of which would be calculated at the time of issuance by dividing the applicable dollar value by a volume weighted average price per share for a 20-day million at maximum performance, may be issued as shares of Class A common stock calculated by dividing the applicable dollar value earned by the volume weighted average price per share for a 20- day period preceding each revenue target determination date. These shares are referred to as the “Fixed Dollar Shares” and there is no maximum to the number of shares that may be issued as Fixed Dollar Shares. The fair value of such shares to be recorded upon issuance will be based on the number of shares issued multiplied by the market value of the Company’s Class A common stock on the date of issuance. The Fixed Shares described above include 17,030 performance-based restricted stock units issued as an Inducement Award and the Fixed Dollar Shares described above includes $ 0.6 million of performance-based restricted stock units issued as an Inducement Award (see Note 9). As achievement of each of the three twelve-month targets will result in the issuance of a variable number of shares of Class A common stock, the Company has recorded the fair value of this contingent consideration within accrued expense and other current liabilities (first annual target) and within other long-term liabilities (second and third annual targets). The Company estimated the fair value of the contingent consideration as of the acquisition date using a Monte Carlo simulation model. The most significant assumptions and estimates utilized in the model include forecasted revenue (an acquisition specific input) and the market value of the Company’s Class A common stock (an observable input). Other assumptions utilized in the model include equity volatility, revenue volatility and discount rate. The Company remeasures the fair value of the contingent consideration at each subsequent reporting date until the liability is fully settled (see Note 4). The Company’s condensed consolidated financial statements reflect the preliminary allocation of the purchase price to the assets and liabilities assumed based on fair value as of the date of the acquisition. The Company’s preliminary estimate of the fair value of specifically identifiable assets acquired and liabilities assumed as of the date of acquisition including the related impact to the deferred tax liability is subject to change upon finalizing its valuation analysis. The final determination may result in changes in the fair value of certain assets and liabilities as compared to these preliminary estimates, which is expected to be finalized in the first half of 2022. The Company expects an adjustment to the release of the deferred tax asset valuation allowance corresponding to any potential measurement period adjustments that impact the net deferred tax liability. The Company’s condensed consolidated financial statements as of September 30, 2021 reflect the preliminary allocation of the preliminary purchase price to the assets and liabilities assumed based on fair value as of the date of the acquisition. The following tables summarize the preliminary purchase price for PolicyFuel and the preliminary allocation of the purchase price (in thousands): Cash paid, net of cash acquired $ 15,955 Fair value of contingent consideration to be settled in stock 3,784 Settlement of existing relationship 233 Total purchase price consideration, net of cash acquired $ 19,972 Assets Acquired and Liabilities Assumed: Accounts receivable $ 283 Commissions receivable (current and long-term) 2,761 Prepaid expenses and other current assets 12 Customer relationships 6,600 Developed technology 1,700 Other identifiable intangible assets 300 Goodwill 11,697 Total assets acquired 23,353 Accounts payable and accrued expenses (current) (871 ) Deferred tax liability (2,510 ) Total allocation of purchase price consideration, net of cash acquired $ 19,972 Customer relationships were valued using the income approach and are being amortized to sales and marketing expense over their estimated useful life of nine years. Significant assumptions and estimates utilized in the model include revenue and earnings growth rates, royalty rates and the discount rate. Developed technology was valued using the relief from royalty method and is being amortized to cost of revenue over its estimated useful life of three years. Significant assumptions and estimates utilized in this model include the royalty rate, the discount rate and the obsolescence curve. Commissions receivable were recorded at constrained lifetime values and are included in prepaid expenses and other current assets and other assets on the Company’s consolidated balance sheet . Goodwill was recognized for the excess purchase price over the fair value of the net assets acquired. Goodwill is primarily attributable to the workforce of the acquired business (which is not eligible for separate recognition as an identifiable intangible asset) and future growth. Goodwill resulting from the acquisition of PolicyFuel is not deductible for tax purposes. The Company incurred costs of $0.4 million and $0.9 million for the three and nine months ended September 30, 2021, respectively, for third-party professional services utilized for the acquisition, which were expensed as incurred within acquisition-related costs on the Company’s consolidated statements of operations and comprehensive loss. The operating results of the acquired entity have been included in the consolidated financial statements beginning on the acquisition date but have not been disclosed as the Company does not account for the results of the acquired entity separate from its own results. Pro forma results of operations for the acquisition have not been presented as they are not material to the Company’s consolidated results of operations. The Company recorded an income tax benefit for the three and nine months ended September 30, 2021 of $ 2.5 mi non-deductible Crosspointe On September 1, 2020, the Company completed the acquisition of Crosspointe Insurance & Financial Services, LLC (“Crosspointe”), a health insurance agency headquartered in Evansville, Indiana. Crosspointe is a sales and decision support contact center that connects consumers to high quality health insurance in a customer-centric environment and serves the individual and family health, Medicare, and ancillary health product markets. This acquisition enables the Company to accelerate and expand its opportunity in the health insurance market, by providing insurance shoppers with a broader range of health insurance products through access to a greater number of carrier partners, and an improved and more personalized customer buying experience. In the third quarter 2021, the Company changed the name of Crosspointe Insurance & Financial Services, LLC to Eversurance, LLC. The Crosspointe acquisition was accounted for as a purchase of a business under ASC Topic 805, Business Combinations . the The Company estimated the fair value of the shares of Class A common stock issuable upon achievement of the three annual targets as of the acquisition date. The Company used a Monte Carlo simulation model in its estimates. Significant assumptions and estimates utilized in the model included forecasted revenue, revenue volatility and discount rate. As of September 1, 2020, the acquisition date, the estimated fair value of the contingent consideration included in other long-term liabilities was $0.4 million. The Company remeasures the fair value of the shares of Class A common stock issuable upon the estimated achievement levels of the third annual target at each subsequent reporting date until the liability is fully settled (see Note 4). The following tables summarize the purchase price for Crosspointe and the allocation of the purchase price (in thousands): Cash paid $ 14,930 Fair value of contingent consideration to be settled in stock 1,751 Total purchase price consideration $ 16,681 Assets Acquired and Liabilities Assumed: Commissions receivable (current and long-term) $ 3,285 Customer relationships 3,600 Other identifiable intangible assets 270 Operating lease right-of-use 1,469 Goodwill 9,969 Total assets acquired 18,593 Accounts payable and accrued expenses (current and long-term) (443 ) Operating lease liabilities (1,469 ) Total allocation of purchase price consideration $ 16,681 Customer relationships were valued using the income approach. Acquired intangible assets are amortized over their estimated useful lives of three Commissions receivable were recorded at constrained lifetime values and are included in prepaid expenses and other current assets and other assets on the Company’s consolidated balance sheet . Goodwill was recognized for the excess purchase price over the fair value of the net assets acquired. Goodwill is primarily attributable to the workforce of the acquired business (which is not eligible for separate recognition as an identifiable intangible asset) and future growth. Goodwill resulting from the acquisition of Crosspointe is deductible for tax purposes. The Company incurred costs of $0.5 million for third-party professional services utilized for the acquisition, which were expensed as incurred within acquisition-related costs on the Company’s consolidated statements of operations and comprehensive loss in 2020. The operating results of the acquired entity have been included in the consolidated financial statements beginning on the acquisition date but have not been disclosed as the Company does not account for the results of the acquired entity separate from its own results. Pro forma results of operations for the acquisition have not been presented as they are not material to the Company’s consolidated results of operations.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Disclosures	4. Fair Value of Financial Instruments The following tables present the Company’s fair value hierarchy for its assets and liabilities which are measured at fair value on a recurring basis as of September 30, 2021 and December 31, 2020 (in thousands): Fair Value Measurements at September 30, 2021 Using: Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 20,502 $ — $ — $ 20,502 Liabilities: Contingent consideration liability associated with acquisition of Crosspointe included in other long-term liabilities $ — $ — $ 1,086 $ 1,086 Contingent consideration liability associated with acquisition of PolicyFuel included in accrued expense and other current liabilities — — 713 713 Contingent consideration liability associated with acquisition of PolicyFuel included in other long-term liabilities — — 4,315 4,315 $ — $ — $ 6,114 $ 6,114 Fair Value Measurements at December 31, 2020 Using: Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 15,777 $ — $ — $ 15,777 Liabilities: Contingent consideration liability associated with acquisition of Crosspointe included in other long-term liabilities $ — $ — $ 2,194 $ 2,194 There were no transfers into or out of Level 3 during the three or nine months ended September 30, 2021 or 2020. Money market funds were valued by the Company based on quoted market prices, which represent a Level 1 measurement within the fair value hierarchy. Contingent consideration liabilities are value d m The Company estimates the fair value of the maximum shares of Class A common stock issuable as contingent consideration upon achievement of certain Crosspointe revenue targets (see Note 3) using probability of achievement of the revenue target (acquisition specific input) and the market value of the Company’s Class A common stock (observable input). The change in fair value of the contingent consideration liability for the three and nine months ended September 30, 2021 was due to the decrease in the market value of the Company’s Class A common stock during the period. The Company uses a Monte Carlo simulation model in its estimates of the fair value of the contingent consideration related to the PolicyFuel acquisition (see Note 3). The most significant assumptions and estimates utilized in the model include forecasted revenue (an acquisition specific input) and the market value of the Company’s Class A common stock (an observable input). Other assumptions utilized in the model include equity volatility, revenue volatility and discount rate. The increase in fair value of contingent consideration related to the Class A common stock issuable upon achievement of revenue targets was primarily due to a change in estimate of forecasted revenue, partially offset by the decrease in the market value of the Company’s Class A common stock during the period. T n Contingent Consideration Liabilities Fair value at December 31, 2020 $ 2,194 Acquisition of PolicyFuel 3,784 Change in fair value of contingent consideration related to Crosspointe acquisition (1,108 ) Change in fair value of contingent consideration related to PolicyFuel acquisition 1,244 Fair value at September 30, 2021 $ 6,114

Goodwill and Acquired Intangibl

Goodwill and Acquired Intangible Assets	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Acquired Intangible Assets	5. Goodwill and Acquired Intangible Assets Goodwill is not amortized, but instead is reviewed for impairment at least annually or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired. The Company considers its business to be one reporting unit for purposes of performin Changes in goodwill for the nine months ended September 30, 2021 were as follows (in thousands): Balance, January 1, 2021 $ 9,794 Final adjustment to Crosspointe purchase price allocation 175 Goodwill resulting from PolicyFuel acquisition 11,697 Balance, September 30, 2021 $ 21,666 Acquired intangible assets consisted of the following (in thousands): September 30, 2021 Weighted Gross Amount Accumulated Carrying (in years) Customer relationships 7.6 $ 10,200 $ (1,376 ) $ 8,824 Developed technology 3 1,700 (76 ) 1,624 Other identifiable intangible assets 2.8 570 (146 ) 424 $ 12,470 $ (1,598 ) $ 10,872 December 31, 2020 Weighted Gross Accumulated Carrying (in years) Customer relationships 5 $ 3,600 $ (464 ) $ 3,136 Other identifiable intangible assets 3.7 270 (40 ) 230 $ 3,870 $ (504 ) $ 3,366 Future amortization expense of the intangible assets as of September 30, 2021, is expected to be as follows (in thousands):

Balance Sheet Detail

Balance Sheet Detail	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Balance Sheet Detail	6. Balance Sheet Detail Prepaid expenses and other current assets consisted of the following (in thousands): September 30, December 31, Commissions receivable, current portion $ 5,978 $ 3,842 Prepaid expenses and other current assets 5,505 4,610 $ 11,483 $ 8,452 Accrued expenses and other current liabilities consisted of the following (in thousands): September 30, December 31, Accrued employee compensation and benefits $ 2,607 $ 4,105 Accrued advertising expenses 13,226 2,596 Other current liabilities 4,353 2,720 $ 20,186 $ 9,421

Loan and Security Agreement

Loan and Security Agreement	9 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Loan and Security Agreement	7. Loan and Security Agreement As of September 30, 2021, the Company had available borrowings of $25.0 million under its amended Loan and Security Agreement (the “2020 Loan Agreement”). Pursuant to the 2020 Loan Agreement, borrowings under the revolving line of credit cannot exceed 80% of eligible accounts receivable balances, bear interest at the greater of 3.25% or the prime rate and mature in August 2022. Borrowings are collateralized by substantially all of the Company’s assets and property. Under the 2020 Loan Agreement, the Company is subject to specified affirmative and negative covenants until maturity. These covenants include limitations on the Company’s ability to incur additional indebtedness and engage in certain fundamental business transactions, such as mergers or acquisitions. In addition, As of September 30, 2021, the Company had no amounts outstanding on the revolving line of credit.

Equity

Equity	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Equity	8. Equity Each share of Class A common stock entitles the holder to one vote for each share on all matters submitted to a vote of the Company’s stockholders at all meetings of stockholders and written actions in lieu of meetings. Each share of Class B common stock entitles the holder to ten votes for each share on all matters submitted to a vote of the Company’s stockholders at all meetings of stockholders and written actions in lieu of meetings. Holders of both classes of common stock are entitled to receive dividends, when and if declared by the board of directors. Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder at any time. Automatic conversion shall occur upon the occurrence of a transfer of such share of Class B common stock or at the date and time, or the occurrence of an event, specified by a vote or written consent of the holders of a majority of the voting power of the then outstanding shares of Class B common stock. A transfer is described as a sale, assignment, transfer, conveyance, hypothecation or disposition of such share or any legal or beneficial interest in such share other than certain permitted transfers as described in the Restated Certificate of Incorporation, including a transfer to a holder of Preferred Stock. Each share of Class B common stock held by a stockholder shall automatically convert into one fully paid and non-assessable During the three and nine months ended September 30, 2021, the Company issued 19,584 shares of common stock to the former owners of Crosspointe upon achievement of the first annual target of the contingent consideration arrangement (see Note 3).

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2021
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	9. Stock-Based Compensation The Company has outstanding awards under its 2008 Stock Incentive Plan, as amended (the “2008 Plan”), but is no longer granting awards under this plan. Shares of common stock issued upon exercise of stock options granted prior to September 8, 2017 will be issued as either Class A common stock or Class B common stock. Shares of common stock issued upon exercise of stock options granted after September 8, 2017 will be issued as Class A common stock. The Company’s 2018 Equity Incentive Plan (the “2018 Plan” and, together with the 2008 Plan, the “Plans”) provides for the grant of incentive stock options, non-qualified stock 2,149,480 shares of Class A common stock, plus the number of shares of Class A common stock (up to 5,028,832 shares) equal to the sum of (i) the 583,056 shares of Class A common stock and Class B common stock that were available for grant under the 2008 Plan upon the effectiveness of the 2018 Plan and (ii) the number of shares of Class A common stock and Class B common stock subject to outstanding awards under the 2008 Plan that expire, terminate or are otherwise surrendered, canceled, forfeited or repurchased by the Company at their original issuance price pursuant to a contractual repurchase right (subject, in the case of incentive stock options, to any limitations of the Internal Revenue Code). The number of shares of Class A common stock that may be issued under the 2018 Plan will automatically increase on the first day of each fiscal year until, and including, the fiscal year ending December 31, 2028, equal to the least of (i) 2,500,000 shares of Class A common stock; (ii) 5% o f the sum of the n u 1,410,678 2,275,815 shares remain available for future grants under the 2018 Plan. Options and RSUs granted under the Plans vest over periods determined by the board of directors. Options granted under the Plans expire no longer than ten years from the date of the grant. The exercise price for stock options granted is not less than the fair value of common shares based on quoted market prices. During the nine months ended September 30, 2021, the Company granted 904,035 service-based RSUs under the 2018 Plan with an aggregate grant date fair value of $ million. During the nine months ended September 30, 2021, the Company granted 26,788 service- and performance-based RSUs under the 2018 Plan with an aggregate grant date fair value of $ 1.3 million. Inducement Grants In connection with the acquisition of PolicyFuel, the Company granted RSUs to newly hired employees. The RSUs were approved by the Company’s board of directors and were granted as an inducement material to the new employees entering into employment with the Company in accordance with Nasdaq Rule 5635(c)(4) (the “Inducement Awards”). The Inducement Awards were granted outside of the 2018 Plan. During the nine months ended September 30, 2021, the Company granted 52,529 service-based RSUs as Inducement Awards with an aggregate grant date fair value of $ 1.1 million. During the nine months ended September 30, 2021, the Company granted 86,518 service- and performance-based RSUs as Inducement Awards with an aggregate grant date fair value of $ 1.9 million. During the nine months ended September 30, 2021, the Company granted service- and performance-based RSUs as Inducement Awards that will vest for a variable number of shares of the Company’s Class A common stock upon the achievement (at varying levels) of certain revenue targets measured at twelve-month intervals over the next three years . The number of shares to be issued upon achievement of each of the revenue targets will be based on a fixed dollar value divided by the volume weighted average price per share of the Company’s Class A common stock for a 20 -day 173,042 , with any remainder being settleable in cash or unregistered shares solely at the Company’s option. Because a variable number of shares will be issued for a fixed dollar amount, the Company has accounted for the obligation to issue such shares as a liability. As of September 30, 2021, the balance of the liability included in accrued expenses and other current liabilities was less than $ 0.1 million. During the nine months ended September 30, 2021, the Company granted 17,030 performance-based RSUs as Inducement Awards with no service requirement as PolicyFuel contingent consideration. The fair value of this issuance has been included in the fair value of contingent consideration (see Notes 3 and 4). During the nine months ended September 30, 2021, the Company granted performance-based RSUs as Inducement Awards as PolicyFuel contingent consideration that will vest for a variable number of shares of the Company’s Class A common stock upon the achievement (at varying levels) of certain revenue targets measured at twelve-month intervals over the next three years, but which have no service conditions. The number of shares to be issued upon achievement of each of the revenue targets is based on a fixed dollar amount divided by the volume weighted average price per share of the Company’s Class A common stock for a 20- day t 34,060, with any remainder being settleable in cash or unregistered shares solely at the Company’s option. The fair value of such awards has been included in the fair value of contingent consideration (see Notes 3 and 4). Stock-Based Compensation The Company recorded stock-based compensation expense in the following expense categories of its statements of operations and comprehensive loss (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Cost of revenue $ 108 $ 111 $ 282 $ 253 Sales and marketing 3,366 3,080 9,216 7,322 Research and development 2,692 2,228 7,340 5,366 General and administrative 2,182 1,781 6,119 5,049 $ 8,348 $ 7,200 $ 22,957 $ 17,990 Stock-based compensation expense for the three and nine months ended September 30, 2021 included a total of $0.5 million and $1.3 million, respectively, related to unvested RSUs and option awards with performance-based vesting conditions, including options with performance- and market-based vesting conditions, for which the performance-based condition has not yet been achieved but has been deemed probable of being achieved. As of September 30, 2021, unrecognized compensation expense for RSUs and option awards with service-based vesting conditions and RSUs and option awards with performance-based vesting conditions either achieved or deemed probable of being achieved was $47.7 million, which is expected to be recognized over a weighted average period of 3.0 years. Additionally, the Company had unrecognized compensation expense of $1.8 million related to unvested awards with performance-based vesting conditions, which have not been deemed probable.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	10. Commitments and Contingencies Leases The Company leases office space under various non-cancelable Leases, Annual Report on 10-K Indemnification Agreements In the normal course of business, the Company may provide indemnification of varying scope and terms to third parties and enters into commitments and guarantees (“Agreements”) under which it may be required to make payments. The duration of these Agreements varies, and in certain cases, is indefinite. Furthermore, many of these Agreements do not limit the Company’s maximum potential payment exposure. In addition, the Company has entered into indemnification agreements with members of its board of directors and executive officers that will require the Company, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. Through September 30, 2021 and December 31, 2020, the Company has not incurred any material costs as a result of such indemnifications. The Company does not believe that the outcome of any claims under indemnification arrangements will have a material effect on its financial position, results of operations or cash flows, and it has not accrued any liabilities related to such obligations in its financial statements as of September 30, 2021 and December 31, 2020. Legal Proceedings and Other Contingencies The Company was contacted by a representative from a state tax assessor’s office requesting remittance of uncollected sales taxes. The Company does not believe its services are taxable in this state and is investigating this request and intends to vigorously defend this position. If the Company does not prevail in its position, uncollected sales taxes due for the period could amount to approximately $1.5 million, including interest and penalties. The Company has not recorded any liabilities related to this matter as th e On November 1, 2021, the Company was named a defendant in a putative, statewide (Florida) class action lawsuit in the Circuit Court of the Eleventh Judicial Circuit in and for Miami-Dade County. The complaint alleges violations of the Florida Telephone Solicitation Act (“FTSA”). Specifically, the plaintiff alleges the Company engaged in telephonic sales calls to consumers without having secured the prior express written consent of those consumers, as required by the FTSA. The Company believes the plaintiff’s claims lack merit. The Company intends to vigorously defend the suit. The Company is from time to time subject to various other legal proceedings and claims, either asserted or unasserted, which arise in the ordinary course of its business. While the outcome of these other claims cannot be predicted with certainty, management does not believe that the outcome of any of these other legal matters will have a material adverse effect on the Company’s results of operations or financial condition.

Retirement Plan

Retirement Plan	9 Months Ended
	Sep. 30, 2021
Retirement Benefits [Abstract]
Retirement Plan	11. Retirement Plan The Company has established a defined-contribution plan under Section 401(k) of the Internal Revenue Code (the “401(k) Plan”). The 401(k) Plan covers all employees who meet defined minimum age and service requirements, and allows participants to defer a portion of their annual compensation on a pre-tax

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2021
Related Party Transactions [Abstract]
Related Party Transactions	12. Related Party Transactions The Company has, in the ordinary course of business, entered into arrangements with other companies who have shareholders in common with the Company. Pursuant to these arrangements, related-party affiliates receive payments for providing website visitor referrals. During the three months ended September 30, 2021 and 2020, the Company recorded expense of $0.8 million and $0.7 million, respectively, related to these arrangements. During the three months ended September 30, 2021 and 2020, the Company paid $1.1 million and $0.4 million, respectively, related to these arrangements. During the nine months ended September 30, 2021 and 2020, the Company recorded expense of $2.7 million and $2.4 million, respectively, related to these arrangements. During the nine months ended September 30, 2021 and 2020, the Company paid $2.9 million and $2.4 million, respectively, related to these arrangements. As of September 30, 2021, and December 31, 2020, amounts due to related-party affiliates totaled $0.4 million and $0.5 million, respectively, which were included in accounts payable on the balance sheets.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Unaudited Interim Financial Information	Unaudited Interim Financial Information The condensed consolidated balance sheet at December 31, 2020 was derived from audited consolidated financial statements but does not include all disclosures required by GAAP. The accompanying unaudited condensed consolidated financial statements as of September 30, 2021 and for the three and nine months ended September 30, 2021 and 2020 have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial statements. Certain information and footnote disclosures normally included in the consolidated financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto for the year ended December 31, 2020 included in the Company’s Annual Report on Form 10-K for
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. Significant estimates and assumptions reflected in these condensed consolidated financial statements include, but are not limited to, revenue recognition and collectability of accounts receivable, the expensing and capitalization of website and software development costs, goodwill and acquired intangible assets, commissions receivable, the contingent consideration liabilities, the valuation of stock-based awards and income taxes. The Company bases its estimates on historical experience, known trends and other market-specific or other relevant factors that it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates, as there are changes in circumstances, facts and experience. Changes in estimates are recorded in periods in which they become known. Actual results may differ from those estimates or assumptions. Due to the COVID-19
Concentrations of Credit Risk and of Significant Customers	Concentrations of Credit Risk and of Significant Customers Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts and commissions receivable. The Company maintains its cash and cash equivalents at accredited financial institutions. The Company does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships. The Company sells its consumer referrals to insurance provider customers, consisting of carriers and agents, and indirect distributors in the United States. For the three months ended September 30, 2021, one customer represented 17% of total revenue. For the nine months ended September 30, 2021, one customer represented 18% of total revenue. For the three months ended September 30, 2020, one customer represented 26% of total revenue. For the nine months ended September 30, 2020, one customer represented 23% of total revenue. As of September 30, 2021, one customer accounted for 15% of the total accounts and commissions receivable balances. As of December 31, 2020 , one customer accounted for 10% of the total accounts and commissions receivable balances.
Fair Value Measurements	Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Financial assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy, of which the first two are considered observable and the last is considered unobservable: • Level 1—Quoted prices in active markets for identical assets or liabilities. • Level 2—Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data. • Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques. The Company’s cash equivalents and contingent consideration liabilities are carried at fair value, determined according to the fair value hierarchy described above (see Note 4). The carrying values of the Company’s accounts receivable, commissions receivable and commissions payable, accounts payable and accrued expenses and other current liabilities approximate their fair values due to the short-term nature of these assets and liabilities.
Restricted Cash	Restricted Cash As of both September 30, 2021 and December 31, 2020, restricted cash consisted of $0.3 million deposited in a separate restricted bank account as a security deposit for the Company’s corporate credit cards. Restricted cash accounts are classified within other assets. Cash, cash equivalents and restricted cash as of December 31, 2020 as shown in the condensed consolidated statement of cash flows of $43.1 million includes cash and cash equivalents of $42.9 million and restricted cash of $0.3 million.
Accounts Receivable	Accounts Receivable The Company provides credit to customers in the ordinary course of business and believes its credit policies are prudent and reflect industry practices and business risk. The Company monitors economic conditions to identify facts or circumstances that may indicate that its receivables are at risk of collection. The Company provides reserves against accounts receivable for estimated losses, if any, that may result from a customer’s inability to pay based on the composition of its accounts receivable, current economic conditions, and historical credit loss activity. Amounts determined to be uncollectible are charged or written-off
Commissions Receivable	Commissions Receivable Commissions receivable are contract assets that represent estimated variable consideration for commissions to be received from insurance carriers for performance obligations that have been satisfied. The current portion of commissions receivable (included within prepaid expenses and other current assets) are estimated commissions expected to be received within one year, while the non-current portion (non-current)) While the Company is exposed to credit losses due to the non-payment
Commissions Payable	Commissions Payable Commissions payable represent the estimated share of policy commissions earned by the Company’s agents. The current portion of commissions payable (included within accrued expenses and other current liabilities) are estimated commissions expected to be paid within one year, while the non-current portion
Goodwill and Acquired Intangible Assets	Goodwill and Acquired Intangible Assets The Company records goodwill when consideration paid in a business acquisition exceeds the value of the net assets acquired. The Company’s estimates of fair value are based upon assumptions believed to be reasonable at that time but that are inherently uncertain and unpredictable. Assumptions may be incomplete or inaccurate, and unanticipated events or circumstances may occur, which may affect the accuracy or validity of such assumptions, estimates or actual results. During the measurement period, which extends no later than one year from the acquisition date, the Company may record certain adjustments to the carrying value of the assets acquired and liabilities assumed with the corresponding offset to goodwill. After the measurement period, all adjustments are recorded in the consolidated statements of operations and comprehensive loss as operating expenses or income. Goodwill is not amortized, but rather is tested for impairment annually, or more frequently if facts and circumstances warrant a review, such as significant underperformance of the business in relation to expectations, significant negative industry or economic trends and significant changes or planned changes in the use of the assets. The Company assesses both the existence of potential impairment and the amount of impairment loss by comparing the fair value of the reporting unit with its carrying amount, including goodwill. Intangible assets are recorded at their estimated fair values at the date of acquisition. The Company amortizes acquired intangible assets over their estimated useful lives based on the pattern of consumption of the economic benefits or, if that pattern cannot be readily determined, on a straight-line basis.
Revenue Recognition	Revenue Recognition The Company derives its revenue by selling consumer referrals to its insurance provider customers, including insurance carriers, agents and indirect distributors. To determine revenue recognition for arrangements that the Company determines are within the scope of the revenue standard, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the Company satisfies a performance obligation. The Company only applies the five-step model to contracts when collectability of the consideration to which the Company is entitled in exchange for the goods or services it transfers to the customer is determined to be probable. Amounts are recorded as accounts receivable when the Company’s right to consideration is unconditional. The Company does not assess whether a contract has a significant financing component if the expectation at contract inception is that the period between payment by the customer and the transfer of the promised goods or services to the customer will be one year or less. The Company recognizes revenue when it satisfies its performance obligations by delivering the referrals to its customers in an amount that reflects the consideration to which it expects to be entitled in exchange for those referrals. The Company presents disaggregated revenue from contracts with customers by distribution channel as the distribution channel impacts the nature and amount of the Company’s revenue and by vertical market segment. Total revenue is comprised of revenue from the following distribution channels: Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Direct channels 89 % 93 % 90 % 93 % Indirect channels 11 % 7 % 10 % 7 % 100 % 100 % 100 % 100 % Total revenue is comprised of revenue from the following insurance verticals (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Automotive $ 89,666 $ 74,779 $ 260,505 $ 207,014 Other 17,897 15,198 55,943 42,629 Total Revenue $ 107,563 $ 89,977 $ 316,448 $ 249,643 The Company has elected to apply the practical expedient in ASC 606 to expense incremental direct costs of obtaining a contract, consisting of sales commissions, as incurred as the expected period of benefit of the sales commissions is one year or less. At September 30, 2021, the Company had not capitalized any costs to obtain its contracts. Amounts received prior to satisfying the revenue recognition criteria are recorded as deferred revenue in the accompanying balance sheets. Amounts expected to be recognized as revenue within 12 months of the balance sheet date are classified as current deferred revenue. Deferred revenue was $1.9 million as of September 30, 2021 and December 31, 2020. During the nine months ended September 30, 2021, the Company recognized revenue of $1.4 million that was included in the contract liability balance (deferred revenue) at December 31, 2020. The Company recognizes deferred revenue by first allocating from the beginning deferred revenue balance to the extent that the beginning deferred revenue balance exceeds the revenue to be recognized. Billings during the period are added to the deferred revenue balance to be recognized in future periods.
Advertising Expense	Advertising Expense Advertising expense consists of variable costs that are related to attracting consumers to the Company’s marketplace and generating consumer quote requests, and promoting its marketplace to insurance carriers and agents. The Company expenses advertising costs as incurred and such costs are included in sales and marketing expense in the accompanying statements of operations and comprehensive loss. During the three months ended September 30, 2021 and 2020, advertising expense totaled $75.2 million and $60.5 million, respectively. During the nine months ended September 30, 2021 and 2020, advertising expense totaled $219.8 million and $172.9 million, respectively.
Net Income (Loss) per Share	Net Income (Loss) per Share Basic net income (loss) per common share is computed by dividing the net income (loss) by the weighted average number of shares of common stock outstanding for the period. Diluted net income (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period, including potential dilutive common shares assuming the dilutive effect of outstanding stock options and unvested restricted stock units. For periods in which the Company reported a net loss, diluted net loss per common share is the same as basic net loss per common share, since dilutive common shares are not assumed to have been issued if their effect is anti-dilutive. The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect: September 30, 2021 2020 Options to purchase common stock 1,708,947 2,773,222 Unvested restricted stock units 2,796,380 3,646,253 4,505,327 6,419,475 The table above does not include shares issuable upon settlement of contingent consideration for the Company’s Crosspointe and PolicyFuel acquisitions (see Note 3). Such shares are also not included in the Company’s calculation of basic or diluted net loss per common share. The Company has two classes of common stock outstanding: Class A common stock and Class B common stock. As more fully described in Note 8, the rights of the holders of Class A and Class B common stock are identical, except with respect to voting and conversion. Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder at any time. The Company allocates undistributed earnings attributable to common stock between the common stock classes on a one-to-one a
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In December 2019, the FASB issued ASU No. 2019-12,

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Disaggregation of Revenue	Total revenue is comprised of revenue from the following distribution channels: Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Direct channels 89 % 93 % 90 % 93 % Indirect channels 11 % 7 % 10 % 7 % 100 % 100 % 100 % 100 % Total revenue is comprised of revenue from the following insurance verticals (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Automotive $ 89,666 $ 74,779 $ 260,505 $ 207,014 Other 17,897 15,198 55,943 42,629 Total Revenue $ 107,563 $ 89,977 $ 316,448 $ 249,643
Summary of Diluted Net Loss Per Share Attributable to Common Stockholders	The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect: September 30, 2021 2020 Options to purchase common stock 1,708,947 2,773,222 Unvested restricted stock units 2,796,380 3,646,253 4,505,327 6,419,475

Acquisition (Tables)

Acquisition (Tables)	9 Months Ended
	Sep. 30, 2021
Policy Fuel LLC [Member]
Business Acquisition [Line Items]
Summary of Purchase Price and Allocation of Purchase Price for Business Acquisition	The following tables summarize the preliminary purchase price for PolicyFuel and the preliminary allocation of the purchase price (in thousands): Cash paid, net of cash acquired $ 15,955 Fair value of contingent consideration to be settled in stock 3,784 Settlement of existing relationship 233 Total purchase price consideration, net of cash acquired $ 19,972 Assets Acquired and Liabilities Assumed: Accounts receivable $ 283 Commissions receivable (current and long-term) 2,761 Prepaid expenses and other current assets 12 Customer relationships 6,600 Developed technology 1,700 Other identifiable intangible assets 300 Goodwill 11,697 Total assets acquired 23,353 Accounts payable and accrued expenses (current) (871 ) Deferred tax liability (2,510 ) Total allocation of purchase price consideration, net of cash acquired $ 19,972
Crosspointe Insurance and Financial Services LLC [Member]
Business Acquisition [Line Items]
Summary of Purchase Price and Allocation of Purchase Price for Business Acquisition	The following tables summarize the purchase price for Crosspointe and the allocation of the purchase price (in thousands): Cash paid $ 14,930 Fair value of contingent consideration to be settled in stock 1,751 Total purchase price consideration $ 16,681 Assets Acquired and Liabilities Assumed: Commissions receivable (current and long-term) $ 3,285 Customer relationships 3,600 Other identifiable intangible assets 270 Operating lease right-of-use 1,469 Goodwill 9,969 Total assets acquired 18,593 Accounts payable and accrued expenses (current and long-term) (443 ) Operating lease liabilities (1,469 ) Total allocation of purchase price consideration $ 16,681

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Summary of Fair Value Measurements, Recurring and Nonrecurring	The following tables present the Company’s fair value hierarchy for its assets and liabilities which are measured at fair value on a recurring basis as of September 30, 2021 and December 31, 2020 (in thousands): Fair Value Measurements at September 30, 2021 Using: Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 20,502 $ — $ — $ 20,502 Liabilities: Contingent consideration liability associated with acquisition of Crosspointe included in other long-term liabilities $ — $ — $ 1,086 $ 1,086 Contingent consideration liability associated with acquisition of PolicyFuel included in accrued expense and other current liabilities — — 713 713 Contingent consideration liability associated with acquisition of PolicyFuel included in other long-term liabilities — — 4,315 4,315 $ — $ — $ 6,114 $ 6,114 Fair Value Measurements at December 31, 2020 Using: Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 15,777 $ — $ — $ 15,777 Liabilities: Contingent consideration liability associated with acquisition of Crosspointe included in other long-term liabilities $ — $ — $ 2,194 $ 2,194
Summary of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	T n Contingent Consideration Liabilities Fair value at December 31, 2020 $ 2,194 Acquisition of PolicyFuel 3,784 Change in fair value of contingent consideration related to Crosspointe acquisition (1,108 ) Change in fair value of contingent consideration related to PolicyFuel acquisition 1,244 Fair value at September 30, 2021 $ 6,114

Goodwill and Acquired Intangi_2

Goodwill and Acquired Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Changes in Goodwill	Changes in goodwill for the nine months ended September 30, 2021 were as follows (in thousands): Balance, January 1, 2021 $ 9,794 Final adjustment to Crosspointe purchase price allocation 175 Goodwill resulting from PolicyFuel acquisition 11,697 Balance, September 30, 2021 $ 21,666
Summary of Acquired Intangible Assets	Acquired intangible assets consisted of the following (in thousands): September 30, 2021 Weighted Gross Amount Accumulated Carrying (in years) Customer relationships 7.6 $ 10,200 $ (1,376 ) $ 8,824 Developed technology 3 1,700 (76 ) 1,624 Other identifiable intangible assets 2.8 570 (146 ) 424 $ 12,470 $ (1,598 ) $ 10,872 December 31, 2020 Weighted Gross Accumulated Carrying (in years) Customer relationships 5 $ 3,600 $ (464 ) $ 3,136 Other identifiable intangible assets 3.7 270 (40 ) 230 $ 3,870 $ (504 ) $ 3,366
Summary of Future Amortization Expense of the Intangible Assets	Future amortization expense of the intangible assets as of September 30, 2021, is expected to be as follows (in thousands): Year Ending December 31, 2021 (Remaining three months) $ 645 2022 2,276 2023 2,001 2024 1,715 2025 960 Thereafter 3,275 $ 10,872

Balance Sheet Detail (Tables)

Balance Sheet Detail (Tables)	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prepaid Expenses and Other Current Assets	Prepaid expenses and other current assets consisted of the following (in thousands): September 30, December 31, Commissions receivable, current portion $ 5,978 $ 3,842 Prepaid expenses and other current assets 5,505 4,610 $ 11,483 $ 8,452
Summary of Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consisted of the following (in thousands): September 30, December 31, Accrued employee compensation and benefits $ 2,607 $ 4,105 Accrued advertising expenses 13,226 2,596 Other current liabilities 4,353 2,720 $ 20,186 $ 9,421

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2021
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Stock-Based Compensation Expense of Statements of Operations and Comprehensive Loss	The Company recorded stock-based compensation expense in the following expense categories of its statements of operations and comprehensive loss (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Cost of revenue $ 108 $ 111 $ 282 $ 253 Sales and marketing 3,366 3,080 9,216 7,322 Research and development 2,692 2,228 7,340 5,366 General and administrative 2,182 1,781 6,119 5,049 $ 8,348 $ 7,200 $ 22,957 $ 17,990

Nature of the Business and Ba_2

Nature of the Business and Basis of Presentation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended		12 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Subsidiary, Sale of Stock [Line Items]
Net losses	$ 5,272	$ 1,881	$ 3,801	$ 3,184	$ 2,808	$ 1,442	$ 10,954	$ 7,434	$ 11,200
Accumulated deficit	129,165						129,165		$ 118,211
Revolving Credit Facility [Member]
Subsidiary, Sale of Stock [Line Items]
Credit facility borrowing capacity	$ 25,000						$ 25,000

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021USD ($)Customers	Sep. 30, 2020USD ($)Customers	Sep. 30, 2021USD ($)Customers	Sep. 30, 2020USD ($)Customers	Dec. 31, 2020USD ($)Customers	Dec. 31, 2019USD ($)
Significant Accounting Policies [Line Items]
Restricted Cash					$ 300
Deferred revenue	$ 1,900		$ 1,900		1,900
Contract with customer, liability, revenue recognized			1,400
Advertising expenses	75,200	$ 60,500	219,800	$ 172,900
Allowance for doubtful accounts					100
Cash, cash equivalents and restricted cash	42,023	46,131	42,023	46,131	43,120	$ 46,304
Cash	41,773	$ 45,881	41,773	$ 45,881	42,870
Maximum [Member]
Significant Accounting Policies [Line Items]
Allowance for doubtful accounts	100		100
Restricted Cash [Member] | Corporate Credit Cards [Member]
Significant Accounting Policies [Line Items]
Security Deposit	$ 300		$ 300		$ 300
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Significant Accounting Policies [Line Items]
Number of major customers | Customers	1	1	1	1
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customers A [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	17.00%	26.00%	18.00%	23.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Significant Accounting Policies [Line Items]
Number of major customers | Customers			1		1
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customers A [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage			15.00%		10.00%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Summary of Revenue by Distribution Chanel (Detail) - Sales Revenue, Net [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Product Information [Line Items]
Revenue from Contract with Customer Percentage	100.00%	100.00%	100.00%	100.00%
Direct channels [Member]
Product Information [Line Items]
Revenue from Contract with Customer Percentage	89.00%	93.00%	90.00%	93.00%
Indirect channels [Member]
Product Information [Line Items]
Revenue from Contract with Customer Percentage	11.00%	7.00%	10.00%	7.00%

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Disaggregation Of Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Product Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 107,563	$ 89,977	$ 316,448	$ 249,643
Automotive [Member]
Product Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	89,666	74,779	260,505	207,014
Other [Member]
Product Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 17,897	$ 15,198	$ 55,943	$ 42,629

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Summary of Diluted Net Loss Per Share Attributable to Common Stockholders (Detail) - shares	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	4,505,327	6,419,475
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	1,708,947	2,773,222
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	2,796,380	3,646,253

Acquisition - Additional Inform

Acquisition - Additional Information (Detail) - USD ($) $ in Thousands	Aug. 13, 2021	Sep. 01, 2020	Sep. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Business Acquisition [Line Items]
Business consideration, cash paid						$ 15,955	$ 14,930
Acquisition-related costs			$ 819		$ 480	1,005	$ 480
Income tax benefit			2,510			$ 2,510
Crosspointe Insurance and Financial Services LLC [Member]
Business Acquisition [Line Items]
Total Business purchase consideration		$ 16,681
Business consideration, cash paid		14,930
Business consideration, shares issued or issuable		1,751
Business combination, fair value of the contingent consideration		$ 400
Business combination contingent consideration period of achievement		3 years
Acquisition-related costs								$ 500
Crosspointe Insurance and Financial Services LLC [Member] | Commission Receivable Fair Value Adjustment
Business Acquisition [Line Items]
Adjustment to Goodwill				$ 200
Crosspointe Insurance and Financial Services LLC [Member] | Class A Common Stock [Member]
Business Acquisition [Line Items]
Business consideration, shares issued or issuable		$ 1,800
Crosspointe Insurance and Financial Services LLC [Member] | Class A Common Stock [Member] | Achievement of First Two Annual Targets [Member]
Business Acquisition [Line Items]
Business combination equity interest issuable or issued, Number of shares		39,168
Crosspointe Insurance and Financial Services LLC [Member] | Minimum [Member]
Business Acquisition [Line Items]
Identifiable intangible assets, useful life						3 years
Crosspointe Insurance and Financial Services LLC [Member] | Maximum [Member]
Business Acquisition [Line Items]
Business combination equity interest issuable or issued, Number of shares		97,922
Identifiable intangible assets, useful life						5 years
Crosspointe Insurance and Financial Services LLC [Member] | Maximum [Member] | Class A Common Stock [Member] | Achievement of Third Annual Target [Member]
Business Acquisition [Line Items]
Business combination equity interest issuable or issued, Number of shares		58,754
Policy Fuel LLC [Member]
Business Acquisition [Line Items]
Total Business purchase consideration	$ 19,972
Business consideration, cash paid	15,955
Business consideration, shares issued or issuable	$ 3,784
Business combination contingent consideration period of achievement	3 years
Acquisition-related costs			400			$ 900
Income tax benefit			$ 2,500			$ 2,500
Business Combination, Consideration Transferred, Liabilities Incurred	$ 233
Policy Fuel LLC [Member] | Fixed Shares [Member]
Business Acquisition [Line Items]
Business combination equity interest issuable or issued, Number of shares	199,311
Percentage of the maximum equity interest issuable	50.00%
Policy Fuel LLC [Member] | Performance Based Rsus Under Inducement Award [Member] | Fixed Shares [Member]
Business Acquisition [Line Items]
Business combination equity interest issuable or issued, Number of shares	17,030
Policy Fuel LLC [Member] | Performance Based Rsus Under Inducement Award [Member] | Fixed Dollar Shares [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 600
Policy Fuel LLC [Member] | Days Preceding Acquisition [Member] | Fixed Shares [Member]
Business Acquisition [Line Items]
The number of trading days used to determine the volume weighted average price per share	20 days
Policy Fuel LLC [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Identifiable intangible assets, useful life						9 years
Policy Fuel LLC [Member] | Developed Technology Rights [Member]
Business Acquisition [Line Items]
Identifiable intangible assets, useful life						3 years
Policy Fuel LLC [Member] | Class A Common Stock [Member] | Fixed Dollar Shares [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 6,500
Percentage of the maximum equity interest issuable	50.00%
Policy Fuel LLC [Member] | Class A Common Stock [Member] | Days Preceding Revenue Target Date [Member] | Fixed Dollar Shares [Member]
Business Acquisition [Line Items]
The number of trading days used to determine the volume weighted average price per share	20 days					20 days
Policy Fuel LLC [Member] | Maximum [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 12,900

Acquisition - Summary of Prelim

Acquisition - Summary of Preliminary Purchase Price for Crosspointe and Preliminary Allocation of Purchase Price (Detail) - USD ($) $ in Thousands	Aug. 13, 2021	Sep. 01, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Cash paid			$ 15,955	$ 14,930
Assets acquired and liabilities assumed:
Goodwill			$ 21,666		$ 9,794
Policy Fuel LLC [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Cash paid	$ 15,955
Fair value of contingent consideration to be settled in stock	3,784
Settlement of existing relationship	233
Total purchase price consideration	19,972
Assets acquired and liabilities assumed:
Accounts receivable	283
Commissions receivable (current and long-term)	2,761
Prepaid expenses and other current assets	12
Goodwill	11,697
Total assets acquired	23,353
Accounts payable and accrued expenses (current)	(871)
Deferred tax liability	(2,510)
Total allocation of purchase price consideration	19,972
Crosspointe Insurance and Financial Services LLC [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Cash paid		$ 14,930
Fair value of contingent consideration to be settled in stock		1,751
Total purchase price consideration		16,681
Assets acquired and liabilities assumed:
Commissions receivable (current and long-term)		3,285
Operating lease right-of-use assets		1,469
Goodwill		9,969
Total assets acquired		18,593
Accounts payable and accrued expenses (current and long-term)		(443)
Operating lease liabilities		(1,469)
Total allocation of purchase price consideration		16,681
Customer relationships [Member] | Policy Fuel LLC [Member]
Assets acquired and liabilities assumed:
Business Combination, Intangible Assets Acquired	6,600
Customer relationships [Member] | Crosspointe Insurance and Financial Services LLC [Member]
Assets acquired and liabilities assumed:
Business Combination, Intangible Assets Acquired		3,600
Developed Technology Rights [Member] | Policy Fuel LLC [Member]
Assets acquired and liabilities assumed:
Business Combination, Intangible Assets Acquired	1,700
Other identifiable intangible assets [Member] | Policy Fuel LLC [Member]
Assets acquired and liabilities assumed:
Business Combination, Intangible Assets Acquired	$ 300
Other identifiable intangible assets [Member] | Crosspointe Insurance and Financial Services LLC [Member]
Assets acquired and liabilities assumed:
Business Combination, Intangible Assets Acquired		$ 270

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Summary of Fair Value Measurements, Recurring and Nonrecurring (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	$ 6,114
Fair Value, Inputs, Level 1 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	0
Fair Value, Inputs, Level 2 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	0
Fair Value, Inputs, Level 3 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	6,114
Contingent Consideration Liability Associated With Acquisition Of Cross pointe Included In Other Long Term Liabilities [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	1,086	$ 2,194
Contingent Consideration Liability Associated With Acquisition Of Cross pointe Included In Other Long Term Liabilities [Member] | Fair Value, Inputs, Level 1 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	0	0
Contingent Consideration Liability Associated With Acquisition Of Cross pointe Included In Other Long Term Liabilities [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	0	0
Contingent Consideration Liability Associated With Acquisition Of Cross pointe Included In Other Long Term Liabilities [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	1,086	2,194
Contingent consideration liability associated with acquisition of PolicyFuel included in accrued expense and other current liabilities
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	713
Contingent consideration liability associated with acquisition of PolicyFuel included in accrued expense and other current liabilities | Fair Value, Inputs, Level 1 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	0
Contingent consideration liability associated with acquisition of PolicyFuel included in accrued expense and other current liabilities | Fair Value, Inputs, Level 2 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	0
Contingent consideration liability associated with acquisition of PolicyFuel included in accrued expense and other current liabilities | Fair Value, Inputs, Level 3 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	713
Contingent Consideration Liability Associated With Acquisition Of Policy Fuel Included In Other Long Term Liabilities [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	4,315
Contingent Consideration Liability Associated With Acquisition Of Policy Fuel Included In Other Long Term Liabilities [Member] | Fair Value, Inputs, Level 1 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	0
Contingent Consideration Liability Associated With Acquisition Of Policy Fuel Included In Other Long Term Liabilities [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	0
Contingent Consideration Liability Associated With Acquisition Of Policy Fuel Included In Other Long Term Liabilities [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities, Fair Value Disclosure [Abstract]
Business consideration, shares issued or issuable	4,315
Money Market Funds [Member]
Assets, Fair Value Disclosure [Abstract]
Money market funds	20,502	15,777
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Money market funds	20,502	15,777
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Money market funds	0	0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Money market funds	$ 0	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Summary of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Fair Value, Inputs, Level 3 [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2021USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value at December 31, 2020	$ 2,194
Acquisition of Policy Fuel	3,784
Fair value at September 30, 2021	6,114
Crosspointe Insurance and Financial Services LLC [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in fair value of contingent consideration related to Crosspointe acquisition	(1,108)
Policy Fuel LLC [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in fair value of contingent consideration related to Crosspointe acquisition	$ 1,244

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands	Sep. 01, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Crosspointe Insurance and Financial Services LLC [Member] | Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	97,922
Crosspointe Insurance and Financial Services LLC [Member] | Common Class A [Member] | Achievement of Third Annual Target [Member] | Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	58,754
Fair Value, Inputs, Level 3 [Member] | Business Combination Contingent Consideration Liability [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net		$ 0	$ 0	$ 0	$ 0

Goodwill and Acquired Intangi_3

Goodwill and Acquired Intangible Assets - Summary of Changes in Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021USD ($)
Goodwill [Line Items]
Opening Balance	$ 9,794
Final adjustment to Crosspointe purchase price allocation	175
Goodwill resulting from PolicyFuel acquisition	11,697
Ending Balance	$ 21,666

Goodwill and Acquired Intangi_4

Goodwill and Acquired Intangible Assets - Summary of Acquired Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 12,470	$ 3,870
Accumulated Amortization	(1,598)	(504)
Carrying Value	$ 10,872	$ 3,366
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	7 years 7 months 6 days	5 years
Gross Amount	$ 10,200	$ 3,600
Accumulated Amortization	(1,376)	(464)
Carrying Value	$ 8,824	$ 3,136
Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	3 years
Gross Amount	$ 1,700
Accumulated Amortization	(76)
Carrying Value	$ 1,624
Other identifiable intangible assets [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	2 years 9 months 18 days	3 years 8 months 12 days
Gross Amount	$ 570	$ 270
Accumulated Amortization	(146)	(40)
Carrying Value	$ 424	$ 230

Goodwill and Acquired Intangi_5

Goodwill and Acquired Intangible Assets - Summary Of Future Amortization Expense Of The Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
2021 (Remaining three months)	$ 645
2022	2,276
2023	2,001
2024	1,715
2025	960
Thereafter	3,275
Total	$ 10,872	$ 3,366

Balance Sheet Detail - Prepaid

Balance Sheet Detail - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Commissions receivable, current portion	$ 5,978	$ 3,842
Prepaid expenses and other current assets	5,505	4,610
Total	$ 11,483	$ 8,452

Balance Sheet Detail - Summary

Balance Sheet Detail - Summary of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued employee compensation and benefits	$ 2,607	$ 4,105
Accrued advertising expenses	13,226	2,596
Other current liabilities	4,353	2,720
Accrued expenses and other current liabilities	$ 20,186	$ 9,421

Loan and Security Agreement - A

Loan and Security Agreement - Additional Information (Detail) - USD ($)	1 Months Ended	9 Months Ended
	Aug. 31, 2020	Sep. 30, 2021
Loan and Security Agreement [Member]
Debt Instrument [Line Items]
Revolving line of credit outstanding amount		$ 0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility borrowing capacity		25,000,000
Revolving Credit Facility [Member] | Loan and Security Agreement [Member] | 2020 Loan Agreement [Member]
Debt Instrument [Line Items]
Credit facility borrowing capacity		$ 25,000,000
Maximum percentage borrowings of eligible accounts receivable		80.00%
Debt instrument, interest rate description	bear interest at the greater of 3.25% or the prime rate
Debt instrument interest rate during period minimum stated percentage		3.25%
Debt Instrument, Covenant Description	the Company is required to maintain a financial performance covenant: a minimum asset coverage ratio of 1.5 to 1, calculated as the sum of unrestricted cash and qualified accounts receivable divided by borrowings outstanding under the revolving line of credit. As of September 30, 2021, the Company was in compliance with these covenants. Events which would meet the criteria of a default under the 2020 Loan Agreement include failure to make payments when due, insolvency events, failure to comply with covenants or material adverse events with respect to the Company.
Maturity date	2022-08

Equity - Additional Information

Equity - Additional Information (Detail) - shares	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Class A Common Stock [Member]
Class of Stock [Line Items]
Common stock, voting right	Class A common stock entitles the holder to one vote for each share
Common stock, shares issued	23,176,001	20,784,065
Class B Common Stock [Member]
Class of Stock [Line Items]
Common stock, voting right	Class B common stock entitles the holder to ten votes for each share
Common stock, conversion features	Each share of Class B common stock is convertible into one share of Class A common stock at the option of the holder at any time. Automatic conversion shall occur upon the occurrence of a transfer of such share of Class B common stock or at the date and time, or the occurrence of an event, specified by a vote or written consent of the holders of a majority of the voting power of the then outstanding shares of Class B common stock. A transfer is described as a sale, assignment, transfer, conveyance, hypothecation or disposition of such share or any legal or beneficial interest in such share other than certain permitted transfers as described in the Restated Certificate of Incorporation, including a transfer to a holder of Preferred Stock. Each share of Class B common stock held by a stockholder shall automatically convert into one fully paid and non-assessable share of Class A common stock nine months after the death or incapacity of the holder of such Class B common stock.
Common stock, shares issued	6,407,678	7,429,502
Upon Achievement Of First Annual Target [Member] | Crosspointe Insurance and Financial Services LLC [Member]
Class of Stock [Line Items]
Common stock, shares issued	19,584

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	Aug. 13, 2021	Jan. 01, 2021	Jun. 27, 2018	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 20, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense				$ 8,348	$ 7,200	$ 22,957	$ 17,990
Policy Fuel LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Business combination contingent consideration period of achievement	3 years
Probable Performance Based [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense				500		1,300
Performance Based [Member] | Non Probable Performance Based [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to unvested options				1,800		1,800
Performance Based [Member] | Probable Performance Based And Service Based [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to unvested options				47,700		$ 47,700
Compensation expense, expected recognition period						3 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options expiration period						10 years
Service Based Restricted Stock Units (RSUs) [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares						904,035
Aggregate grant date fair value of options				33,500		$ 33,500
Service Based and Performance Based RSUs [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares						26,788
Aggregate grant date fair value of options				1,300		$ 1,300
Service Based Inducement Award [Member] | Policy Fuel LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares						52,529
Aggregate grant date fair value of options				1,100		$ 1,100
Service And Performance Based Inducement Award [Member] | Policy Fuel LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares						86,518
Aggregate grant date fair value of options				$ 1,900		$ 1,900
Business combination contingent consideration period of achievement						3 years
Service And Performance Based Inducement Award [Member] | Maximum [Member] | Accrued Liabilities And Other Liabilities [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Obligation To Issue Shares Current								$ 100
Service And Performance Based Inducement Award [Member] | Maximum [Member] | Policy Fuel LLC [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share Based Compensation Shares Used To Settle Awards						173,042
Performance Based Inducement Award [Member] | Policy Fuel LLC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares						17,030
Business combination contingent consideration period of achievement						3 years
Performance Based Inducement Award [Member] | Maximum [Member] | Policy Fuel LLC [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share Based Compensation Shares Used To Settle Awards						34,060
Class A Common Stock [Member] | Days Preceding Revenue Target Date [Member] | Policy Fuel LLC [Member] | Fixed Dollar Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
The number of trading days used to determine the volume weighted average price per share	20 days					20 days
Class A Common Stock [Member] | Days Preceding Revenue Target Date [Member] | Performance Based And Service Based [Member] | Policy Fuel LLC [Member] | Fixed Dollar Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
The number of trading days used to determine the volume weighted average price per share						20 days
2018 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation, common stock available for grant				2,275,815		2,275,815
Share-based Compensation, number of additional shares available for issuance		1,410,678
2018 Equity Incentive Plan [Member] | Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation, common stock available for grant			2,149,480
2018 Equity Incentive Plan [Member] | Class A Common Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation, common stock available for grant			5,028,832
Annual increase in shares authorized			2,500,000
2018 Equity Incentive Plan [Member] | Class A Common Stock and Class B Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation, number of additional shares available from 2008 Stock Incentive Plan			583,056
2018 Equity Incentive Plan [Member] | Class A Common Stock and Class B Common Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual percentage increase in shares authorized			5.00%

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock-Based Compensation Expense of Statements of Operations and Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$ 8,348	$ 7,200	$ 22,957	$ 17,990
Cost of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	108	111	282	253
Sales and Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	3,366	3,080	9,216	7,322
Research and Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	2,692	2,228	7,340	5,366
General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$ 2,182	$ 1,781	$ 6,119	$ 5,049

Commitments and Contingencies -

Commitments and Contingencies -Additional Information (Detail) $ in Millions	Sep. 30, 2021USD ($)
Operating Leased Assets [Line Items]
Nonprobable Sales Tax Due	$ 1.5

Retirement Plan - Additional In

Retirement Plan - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Retirement Benefits [Abstract]
Contribution to defined contribution savings plan	$ 0.2	$ 0.2	$ 0.7	$ 0.5

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Related Party Transactions [Abstract]
Expense from transactions with related party	$ 0.8	$ 0.7	$ 2.7	$ 2.4
Payment to related party	1.1	$ 0.4	2.9	$ 2.4
Due to affiliate	$ 0.4		$ 0.4		$ 0.5