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Employee Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2020
Retirement Benefits [Abstract]
Defined Contribution Plan, Cost	$ 3,386	$ 2,326	$ 2,144
Defined Benefit Plan, Funded Percentage				84.38%

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- References

No definition available.

+ Details

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- Definition

Percentage of plan assets to benefit obligation of defined benefit plan.

+ References

No definition available.

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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