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Equity-based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2020

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Equity-based Compensation Cost Recognized

A summary of equity-based compensation cost recognized during the year ended December 31, 2020, 2019, and 2018 is as follows:

		2020				2019				2018
QLH Class B units		$	5,556			$	3,594			$	824
QLH restricted Class B-1 units			90				—				—
Restricted Class A shares			211				—				—
Restricted stock units			19,679				—				—
Equity-based compensation expense		$	25,536			$	3,594			$	824
Total income tax benefit recognized related to equity-based compensation		$	3,088			$	—			$	—

Schedule of Equity-based Compensation Expense

Equity-based compensation cost is allocated to the following expense categories in its condensed consolidated statement of operations during the year ended December 31, 2020, 2019 and 2018 as follows:

		2020				2019				2018
Cost of revenue		$	2,809			$	181			$	54
Sales and marketing			6,544				1,384				425
Product development			4,723				532				167
General and administrative			11,460				1,497				178
Total equity-based compensation		$	25,536			$	3,594			$	824

RSUs

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Unvested Unit Activity

A summary of unvested restricted stock unit activity for fiscal years 2020, 2019, and 2018 is as follows:

		Number of Units				Weighted-average grant-date fair value
RSUs
Unvested and outstanding as of December 31, 2019			—				—
Granted			5,822,790			$	22.22
Vested			(339,914	)			38.39
Forfeited			—				—
Settled or cancelled			—				—
Unvested and outstanding as of December 31, 2020			5,482,876			$	21.22

QLH Class B-1 Units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Unvested Unit Activity

A summary of unvested QLH Class B-1 unit activity for 2020, 2019, and 2018 is as follows:

		Number of Units				Weighted-average grant-date fair value
QLH Class B-1 units
Unvested and outstanding as of December 31, 2019			—				—
Granted			583,398			$	2.79
Vested			(53,047	)			1.77
Forfeited			(5,667	)			1.93
Settled or cancelled			—				—
Unvested and outstanding as of December 31, 2020			524,684			$	2.90

Restricted Class A Shares

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Unvested Unit Activity

A summary of unvested Company Class A share activity for 2020, 2019, and 2018 is as follows:

		Number of Units				Weighted-average grant-date fair value
Restricted Class A Shares
Unvested and outstanding as of December 31, 2019			—				—
Granted			1,210,253			$	3.21
Vested			(120,516	)			1.72
Forfeited			(28,132	)			1.93
Settled or cancelled			—				—
Unvested and outstanding as of December 31, 2020			1,061,605			$	3.41

QLH Class B Profits Interests

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Schedule of Option Pricing Model Assumptions for Determining Fair Value of Class B Units

The fair value of the QLH Class B profits interests was determined on the grant date using the option pricing model based on the following assumptions:

		Twelve months ended December 31,
		2020				2019				2018
Expected term (in years)			0.5 - 2 years				2 - 3 years				3 - 5 years
Expected volatility			70% - 88%				70% - 75%				50 - 55%
Expected dividend yield			—				—				—
Risk-free interest rate			0.11% - 1.41%				1.58% - 2.19%				2.57% - 2.74%
Discount for lack of marketability			25% - 30%				30%				30%

QLH Class B Profits Interests | Class B Units

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Class B Units' Activity

A summary of Class B Unit activity for fiscal years 2020, 2019, and 2018 is as follows:

		Number of Units				Weighted-average grant-date fair value				Aggregate Intrinsic Value (in thousands)
QLH Class B units
Outstanding as of December 31, 2017			81,590			$	41.36			$	6,274
Granted			19,000				62.08
Repurchased			—				—
Forfeited			(2,500	)			46.09
Settled or cancelled			—				—
Outstanding as of December 31, 2018			98,090			$	45.25			$	22,244
Granted			100,738			$	71.69
Repurchased			(31,799	)			44.61
Forfeited			(3,229	)			46.09
Settled or cancelled			—				—
Outstanding as of December 31, 2019			163,800			$	61.62			$	28,622
Granted			25,500			$	105.85
Repurchased			(8,568	)			51.03
Forfeited			(3,432	)			74.22
Settled or cancelled (1)			(177,300	)			68.25
Outstanding as of December 31, 2020			—			$	—			$	—

(1) Upon the IPO and the concurrent 44 x stock split, these units were exchanged for 6,470,599 QLH Class B-1 units and Company Class A shares, of which 902,847 vested shares were cash-settled at fair market value. Because all of the QLH Class B profits interests were either (1) settled or (2) cancelled and replaced upon the IPO, there are 0 QLH Class B units outstanding as of December 31, 2020.

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