Segment Information - Additional Information (Detail) - USD ($) $ in Billions	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Segment Reporting [Abstract]
Revenue in excess of billings	$ 0.3	$ 0.3
Total backlog	$ 3.1
Percentage of revenue expected to be recognized over next 12 months	60.00%
Billings and cash collections in excess of revenue	$ 1.3	$ 1.1