Captive Insurance Collateral (Tables)

6 Months Ended

Mar. 31, 2021

Investments Debt And Equity Securities [Abstract]

Schedule of Captive Insurance Collateral to be Level 1 Available-for-sale Investments

The Company considers all of its captive insurance collateral to be Level 1 available-for-sale investments. Investments at March 31, 2021 consist of the following (in thousands):

	Amortized Cost		Gross Unrealized Gain		Gross Unrealized (Loss)			Fair Value
Cash and Receivables	$	913	$	—	$	—		$	913
U.S. Government Sponsored Agencies		47,154		134		(60	)		47,228
Corporate Debt Securities		19,020		1,009		(56	)		19,973
Foreign Bonds and Notes		1,487		52		—			1,539
Total	$	68,574	$	1,195	$	(116	)	$	69,653

Investments at September 30, 2020 consist of the following (in thousands):

	Amortized Cost		Gross Unrealized Gain		Gross Unrealized (Loss)			Fair Value
Cash and Receivables	$	1,152	$	—	$	—		$	1,152
U.S. Government Sponsored Agencies		42,032		229		(26	)		42,235
Corporate Debt Securities		21,666		1,660		—			23,326
Foreign Bonds and Notes		2,992		82		—			3,074
Total	$	67,842	$	1,971	$	(26	)	$	69,787

Schedule of Maturities of Investments

Maturities of investments were as follows at March 31, 2021 (in thousands):

	Net Carrying Amount
Due within one year	$	6,477
Due after one year through five years		61,007
Due after five years through ten years		2,169
Total	$	69,653