Leases - Future Minimum Payments for Operating and Finance Leases (Detail) $ in Thousands	Dec. 31, 2022 USD ($)
Finance Leases
2023	$ 1,109
2024	810
2025	651
Total future minimum lease payments	2,570
Less: Imputed Interest	199
Total Lease Liabilities	2,371
Operating Leases
2023	4,574
2024	4,195
2025	4,092
2026	4,118
Thereafter	25,721
Total future minimum lease payments	42,700
Less: Imputed Interest	16,524
Lease liability	$ 26,176

Finance liabilities and finance lease sale and lease back liabilities current and noncurrent.

No definition available.

Name:	sldb_FinanceLiabilitiesAndFinanceLeaseSaleAndLeaseBackLiabilitiesCurrentAndNoncurrent
Namespace Prefix:	sldb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.