Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Instruments (Details)

v3.20.4
Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Instruments (Details) - Level 3 - USD ($)
$ in Thousands
3 Months Ended
Dec. 26, 2020
Dec. 28, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 1,369 $ 7,369
Estimated contingent performance-based consideration established at the time of acquisition 0 0
Changes in the fair value of contingent performance-based payments established at the time of acquisition (32) 31
Performance-based payments (110) (6,077)
Ending balance $ 1,227 $ 1,323