Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Apr. 06, 2021	Jul. 01, 2020	Jun. 10, 2020	Jun. 30, 2021	Dec. 31, 2020	Jun. 11, 2020
Class of Stock [Line Items]
Common stock, par value (in dollars per share)				$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)				550,000,000	550,000,000	550,000,000
Preferred stock, shares authorized (in shares)				10,000,000	10,000,000	10,000,000
Common stock, shares outstanding (in shares)				126,190,351	126,803,096	91,849,909
Common stock, shares, issued, subject to certain lock-up and forfeiture arrangements (in shares)						3,437,500
Common stock, shares, outstanding, subject to certain lock-up and forfeiture arrangements (in shares)						3,437,500
Preferred stock, par value (in dollars per share)				$ 0.01	$ 0.01	$ 0.01
Class of warrant or right, outstanding (in shares)						9,166,659
Common stock repurchased (in shares)	612,745
Common stock repurchased	$ 20.0
Public Stock Offering
Class of Stock [Line Items]
Sale of stock, maximum shares authorized (in shares)	9,000,000
Sale of stock, price per share (in dollars per share)	$ 34.00
Over-Allotment Option
Class of Stock [Line Items]
Sale of stock, maximum shares authorized (in shares)	1,350,000
Sale of stock, over-allotment purchase period	30 days
Public Warrants
Class of Stock [Line Items]
Class of warrant or right exercise price (in dollars per share)		$ 11.50
Common Stock
Class of Stock [Line Items]
Class of warrant or right, number of securities called by warrants or rights (in shares)		9,166,659
Nebula Holdings LLC
Class of Stock [Line Items]
Business combination, number of shares issued (in shares)			51,909,655
Nebula Holdings LLC | Earnout Consideration
Class of Stock [Line Items]
Business combination, number of shares issued (in shares)			22,500,000
Nebula Holdings LLC | Earnout Consideration | Nebula Equity Holders
Class of Stock [Line Items]
Business combination, number of shares issued (in shares)			1,250,000
Nebula Holdings LLC | Maximum | Earnout Consideration
Class of Stock [Line Items]
Business combination, number of shares issued (in shares)		23,750,000
Nebula Holdings LLC | Common Stock
Class of Stock [Line Items]
Number of shares registered for issuance (in shares)		52,916,659