Related-party transactions (Tables)

12 Months Ended

Dec. 31, 2021

Related Party Transactions [Abstract]

Schedule of Income and Expense Resulting from Imputed Charges

The income and expense recognized by the Company for periods prior to the separation resulting from these imputed charges was recorded as other income, net in the combined financial statements and was as follows:

	Year ended December 31,
	2021		2020		2019
Imputed charge to bluebird bio for leases	$	14,833	$	16,562	$	17,694
Imputed charge from bluebird bio for leases	(908)		(1,072)		(696)
Imputed charge to bluebird bio for property, plant and equipment	1,891		2,225		3,385
Imputed charge from bluebird bio for property, plant and equipment	(1,130)		(229)		(99)
Imputed charge to bluebird bio for intangible assets	82		199		65
Other	(1)		155		(116)
	$	14,767	$	17,840	$	20,233