Stockholders' Equity - Narrative (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended	12 Months Ended
	Jun. 30, 2020	Jan. 31, 2019	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Feb. 29, 2020
Stockholders Equity [Line Items]
Proceeds from issuance of common stock under ATM facility, net				$ 98,438	$ 0	$ 0
Number of shares authorized (in shares)				1,466,561
Intrinsic value of stock options exercised				$ 55,600
Total common stock issued under employee stock purchase plan (in shares)				52,180	64,456	0
Common Stock
Stockholders Equity [Line Items]
Sale of stock, number of shares issued in transaction (in shares)			1,200,000
Sale of stock, price per share (usd per share)			$ 81.06
Sale of stock, consideration received per transaction			$ 100,600
Maximum
Stockholders Equity [Line Items]
Offering price of common stock							$ 250,000
Amended Long Term Incentive Plan Twenty Twenty
Stockholders Equity [Line Items]
Stock options exercisable period				7 years
Stock options
Stockholders Equity [Line Items]
Unrecognized expense (in thousands)				$ 81,100
Remaining weighted-average recognition period (in years)				2 years 6 months
Stock options | Amended Long Term Incentive Plan Twenty Twenty
Stockholders Equity [Line Items]
Vesting description		three years		Stock options granted under the 2021 LTIP generally vest over four years with 25% of the shares subject to each option vesting on the first anniversary of the grant date and the remainder of the shares vesting monthly over the following three years in equal installments
Vesting period				4 years
Vesting percentage				25.00%
Remaining vesting period				3 years
Restricted Stock Units (RSUs)
Stockholders Equity [Line Items]
Unrecognized expense (in thousands)				$ 41,500
Remaining weighted-average recognition period (in years)				3 years 1 month 6 days
Grants in period (in shares)				696,000
Restricted Stock Units (RSUs) | Amended Long Term Incentive Plan Twenty Twenty | Minimum
Stockholders Equity [Line Items]
Vesting period				1 year
Restricted Stock Units (RSUs) | Amended Long Term Incentive Plan Twenty Twenty | Maximum
Stockholders Equity [Line Items]
Vesting period				4 years
Stock Appreciation Rights (SARs) | Amended Long Term Incentive Plan Twenty Twenty | Minimum
Stockholders Equity [Line Items]
Purchase price of common shares as a percentage of fair market value				100.00%
ESPP
Stockholders Equity [Line Items]
Maximum percentage of annual compensation contributable to ESPP				15.00%
Maximum number of shares allowed to purchase per purchase period				2,000
Maximum ESPP offering period				12 months
ESPP | Minimum
Stockholders Equity [Line Items]
Purchase price of common shares as a percentage of fair market value				85.00%
Performance Based Restricted Stock Units (PRSUs)
Stockholders Equity [Line Items]
Vesting period				3 years
Unrecognized expense (in thousands)				$ 5,800
Grants in period (in shares)				434,000
Allocated share-based compensation expense, not yet recognized				$ 22,000
Compensation expense of requisite service period				1 year 2 months 12 days
Performance Based Restricted Stock Units (PRSUs) | Employees
Stockholders Equity [Line Items]
Grants in period (in shares)				216,772
Performance Based Restricted Stock Units (PRSUs) | Tranche One
Stockholders Equity [Line Items]
Vesting percentage				50.00%
Performance Based Restricted Stock Units (PRSUs) | Tranche Two
Stockholders Equity [Line Items]
Vesting percentage				100.00%
Performance Based Restricted Stock Units (PRSUs) | Tranche Three
Stockholders Equity [Line Items]
Vesting percentage				200.00%
Performance Based Restricted Stock Units (PRSUs) | Minimum | Tranche One
Stockholders Equity [Line Items]
Common stock closing price (usd per share)				$ 120.00
Performance Based Restricted Stock Units (PRSUs) | Minimum | Tranche Two
Stockholders Equity [Line Items]
Common stock closing price (usd per share)				130.00
Performance Based Restricted Stock Units (PRSUs) | Minimum | Tranche Three
Stockholders Equity [Line Items]
Common stock closing price (usd per share)				$ 145.00
Performance Based Restricted Stock Units (PRSUs) | Maximum
Stockholders Equity [Line Items]
Number of shares to be awarded as a percentage of target amounts				200.00%
Equity Compensation Plans
Stockholders Equity [Line Items]
Number of shares authorized (in shares)				12,862,657
Common Stock
Stockholders Equity [Line Items]
Issuance of common stock, net (in shares)				1,241,142	6,325,000
Underwritten Public Offering | Common Stock
Stockholders Equity [Line Items]
Issuance of common stock, net (in shares)	6,325,000
Proceeds from issuance of common stock under ATM facility, net	$ 301,800