Revenue recognition

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Revenue recognition

3. Revenue recognition

Deferred revenue— Revenue recognized for the three months ended June 30, 2022 from amounts included in deferred revenue as of March 31, 2022 was $115.2 million. Revenue recognized for the three months ended June 30, 2021 from amounts included in deferred revenue as of March 31, 2021 was $90.8 million.

Revenue recognized for the six months ended June 30, 2022 from amounts included in deferred revenue as of December 31, 2021 was $157.8 million. Revenue recognized for the six months ended June 30, 2021 from amounts included in deferred revenue as of December 31, 2020 was $104.2 million.

The below table presents a summary of deferred revenue balances by reportable segment (in thousands):

	June 30,		December 31,		December 31,
	2022		2021		2020
Deferred revenue:
Enterprise	$	188,642	$	148,966	$	84,241
Consumer	55,010		61,588		58,135
Total deferred revenue	$	243,652	$	210,554	$	142,376

Remaining performance obligations—Remaining performance obligations represent the aggregate amount of the transaction price in contracts for performance obligations not delivered, or partially undelivered, as of the end of the reporting period. Remaining performance obligations relate to unearned revenue from Consumer single course purchase arrangements and unearned and unbilled revenue from multi-year Enterprise subscription contracts with future installment payments at the end of any given period. As of June 30, 2022, the aggregate transaction price for remaining performance obligations was $414.3 million, of which 70% is expected to be recognized over the next twelve months and the remainder thereafter.

Deferred contract costs—The following table represents a rollforward of the Company’s deferred contract costs (in thousands):

	Balance at Beginning of Period		Additions		Amortization Expense		Balance at End of Period
Six months ended June 30, 2022	$	44,545	$	27,381	$	(13,965)	$	57,961
Six months ended June 30, 2021	$	25,837	$	15,724	$	(7,233)	$	34,328