Organization, Business and Summary of Significant Accounting Policies - Additional Information (Detail)		3 Months Ended		6 Months Ended
	Oct. 01, 2021 ReportingUnit	Jun. 30, 2023 USD ($) Location Customer Datacenter Country Lab $ / shares	Jun. 30, 2022 USD ($) Customer	Jun. 30, 2023 USD ($) Location Customer Segment Datacenter Country Lab $ / shares	Jun. 30, 2022 USD ($) Customer	Mar. 03, 2023 USD ($)	Dec. 31, 2022 USD ($) $ / shares	Dec. 19, 2019 USD ($)
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Number of countries | Country		16		16
Number of data centers | Datacenter		9		9
Number of data recovery labs | Lab		13		13
Date of incorporation				Aug. 02, 2018
Common stock, par value | $ / shares		$ 0.0001		$ 0.0001			$ 0.0001
Cash balance		$ 20,900,000		$ 20,900,000
Debt amount, balance due		543,034,000		543,034,000			$ 539,558,000
Current portion of long-term debt		289,491,000		$ 289,491,000			3,000,000
Number of business segment | Segment				1
Revenues		90,007,000	$ 75,191,000	$ 180,666,000	$ 157,089,000
Depreciation expense		2,400,000	2,400,000	4,700,000	4,900,000
Amortization expense		3,900,000	5,000,000.0	7,800,000	10,000,000.0
Number of reporting unit | ReportingUnit	1
Amended 2021 Credit Agreement [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Debt principal amount						$ 300,000,000
Delayed draw term loans		0		0		50,000,000
Debt amount, balance due		293,300,000		293,300,000
Current portion of long-term debt		293,300,000		293,300,000
Amended 2021 Credit Agreement [Member] | Revolving Credit Facility [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Line Of Credit		0		0		40,000,000
Amended 2021 Credit Agreement [Member] | Letter of Credit [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Line Of Credit		600,000		600,000		$ 10,000,000
Convertible Debentures Due 2024 [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Debt principal amount								$ 200,000,000
Debt amount, balance due		249,784,000		249,784,000			244,808,000
Cost of Revenues [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Amortization expense		1,400,000	2,500,000	2,700,000	5,100,000
Internal-Use Software Development [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Capitalized software costs		19,000,000.0		19,000,000.0			17,500,000
UK and Germany [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Revenues		16,500,000	$ 12,100,000	29,100,000	$ 26,200,000
Long-lived assets		$ 26,600,000		$ 26,600,000			$ 25,900,000
Consolidated Revenues [Member] | Customer Concentration Risk [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Number of customers representing more than 5% of consolidated revenues or accounts receivable | Customer		0	0	0	0
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Number of customers representing more than 5% of consolidated revenues or accounts receivable | Customer		0	0	0	0
Minimum [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Number of locations | Location		25		25
Minimum [Member] | Internal-Use Software Development [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life				3 years
Maximum [Member] | Internal-Use Software Development [Member]
Organization Business And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life				5 years