Revenue (Tables)

3 Months Ended

Mar. 31, 2022

Revenue From Contract With Customer [Abstract]

Summary of Changes in Deferred Revenue Related to Material Right Performance Obligations

Changes in deferred revenue related to material right performance obligations as of March 31, 2022 and 2021 were as follows:

	Three Months Ended March 31,
	2022			2021
Balance, beginning of period	$	101,426		$	86,826
Deferral of revenue		9,188			6,962
Recognition of unearned revenue		(5,798	)		(4,795	)
Balance, end of period	$	104,816		$	88,993

Summary of Asset Balances and Related Amortization Expense For Contract Costs

The following tables present the asset balances and related amortization expense for these contract costs:

	As of and for the Three Months Ended March 31, 2022
	Beginning		Capitalization					Ending
	Balance		of Costs		Amortization			Balance
Costs to obtain a contract	$	272,919	$	28,286	$	(10,682	)	$	290,523
Costs to fulfill a contract	$	265,657	$	28,630	$	(9,206	)	$	285,081
	As of and for the Three Months Ended March 31, 2021
	Beginning		Capitalization					Ending
	Balance		of Costs		Amortization			Balance
Costs to obtain a contract	$	232,583	$	20,541	$	(8,785	)	$	244,339
Costs to fulfill a contract	$	199,593	$	22,178	$	(6,802	)	$	214,969