Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Fair Value Measurements - Summary of Changes in Fair Value of Level 3 Financial Instruments (Details) - Level 3 - USD ($)
$ in Thousands
9 Months Ended
Jun. 27, 2020
Jun. 29, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 7,369 $ 8,224
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 31 (296)
Performance-based payments (6,154) (104)
Ending balance $ 1,246 $ 7,824