Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 67,552	$ 68,431
Short-term investments	96,733	117,158
Prepaid expenses and other current assets	4,588	5,006
Total current assets	168,873	190,595
Operating lease right-of-use assets	69,503	78,934
Property and equipment, net	33,347	34,927
Restricted cash	2,503	2,503
Deposit and other long-term assets	1,351	1,413
Total assets	275,577	308,372
Current liabilities:
Accounts payable	2,863	2,238
Accrued expenses and other current liabilities	17,344	16,767
Lease liability, current portion	26,265	13,241
Total current liabilities	46,472	32,246
Lease liability, net of current portion	71,348	93,561
Other non-current liabilities	0	1,047
Total liabilities	117,820	126,854
Stockholders’ equity:
Preferred stock	0	0
Common stock	10	10
Additional paid-in capital	990,214	985,651
Accumulated other comprehensive loss	(799)	(1,531)
Accumulated deficit	(831,668)	(802,612)
Total stockholders’ equity	157,757	181,518
Total liabilities and stockholders' equity	$ 275,577	$ 308,372

Accrued expenses and other current liabilities.

No definition available.

Name:	advm_AccruedExpensesAndOtherCurrentLiabilities
Namespace Prefix:	advm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).