Central Garden & Pet Company Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 26, 2020	Sep. 26, 2020	Dec. 28, 2019	Sep. 28, 2019
Level 3
Liabilities:
Liability for contingent consideration (a)	$ 1,227	$ 1,369	$ 1,323	$ 7,369
Recurring
Liabilities:
Liability for contingent consideration (a)	1,227	1,369	1,323
Total liabilities	1,227	1,369	1,323
Recurring \| Level 1
Liabilities:
Liability for contingent consideration (a)	0	0	0
Total liabilities	0	0	0
Recurring \| Level 2
Liabilities:
Liability for contingent consideration (a)	0	0	0
Total liabilities	0	0	0
Recurring \| Level 3
Liabilities:
Liability for contingent consideration (a)	1,227	1,369	1,323
Total liabilities	$ 1,227	$ 1,369	1,323
Segrest, Inc. \| Recurring
Liabilities:
Liability for contingent consideration (a)			$ 6,000