Fair Value Measurements - Schedule of value assets and liabilities measured on recurring basis (Detail) - USD ($) $ in Thousands	Sep. 26, 2021	Dec. 31, 2020
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	$ 94,947
Acquisition Contingent Consideration Payable
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	24,373
Earn-Out Liability
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	24,588
Warrant Liability – Public Warrants [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	30,400
Warrant Liability Private Placement Warrants [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	15,586
Level 1 [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	30,400
Level 1 [Member] | Acquisition Contingent Consideration Payable
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 1 [Member] | Earn-Out Liability
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 1 [Member] | Warrant Liability – Public Warrants [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	30,400
Level 1 [Member] | Warrant Liability Private Placement Warrants [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 2 [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 2 [Member] | Acquisition Contingent Consideration Payable
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 2 [Member] | Earn-Out Liability
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 2 [Member] | Warrant Liability – Public Warrants [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 2 [Member] | Warrant Liability Private Placement Warrants [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 3 [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	64,547	$ 9,200
Level 3 [Member] | Acquisition Contingent Consideration Payable
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	24,373
Level 3 [Member] | Earn-Out Liability
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	24,588	$ 0
Level 3 [Member] | Warrant Liability – Public Warrants [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	0
Level 3 [Member] | Warrant Liability Private Placement Warrants [Member]
Fair Value Measurements (Details) - Schedule of value assets measured on recurring basis [Line Items]
Total fair value	$ 15,586