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Employee Benefit Plans | 12 Months Ended
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Sep. 30, 2021
Retirement Benefits [Abstract] |
Employee Benefits Plans | Employee Benefit PlansAs of September 30, 2021, the Company and its subsidiaries maintain a 401(k) Plan (the "401(k) Plan"), a defined contribution and supplemental pension plan for the benefit of its eligible employees. The Company may provide a discretionary matching contribution of a participant's elective contributions under the 401 (k) Plan. The Company recorded related expense of $1.5 million in fiscal 2021 and $1.2 million in fiscal year 2020. The increase was primarily due to headcount growth from the IBA acquisition. Participants are always fully vested in their elective contributions and vests in Company matching contributions over a four year period.

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