Summary of Significant Accounting Policies - Summary of Changes in Company's Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Regulatory Assets [Abstract]
Balance at Beginning of Year	$ 4,494	$ 2,514	$ 1,754
Provision	2,021	2,239	904
Write-offs, Net of Recoveries	(1,487)	(259)	(144)
Balance at End of Year	$ 5,028	$ 4,494	$ 2,514