Debt (Tables)

6 Months Ended

Mar. 31, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long‑term debt consists of the following:

	March 31, 2021		September 30, 2020
First Lien Term Loan, due December 20, 2024 (1)	$	814,538	$	819,276
First Lien Credit Agreement Revolving Credit Facility (1)	—		—
Equipment Financing, due April 30, 2021 to July 5, 2029, interest rates ranging from 3.25% to 8.07%	74,382		63,918
Notes Payable, due July 31, 2023	507		611
Mortgage (2)	—		1,665
Total debt	889,427		885,470
Less unamortized deferred financing fees	(8,392)		(9,436)
Total net debt	881,035		876,034
Less current portion	(21,343)		(14,339)
Total long‑term debt	$	859,692	$	861,695

(1)On April 1, 2021, the Company paid off the outstanding balance of the First Lien Term Loan (as defined below) and entered into the 2021 Credit Agreement (as defined below). See Note 23, “Subsequent Events” for further discussion.

(2)In November 2020, the Company paid off the outstanding balance of the mortgage due June 30, 2028.

Deferred financing fees related to the First Lien Term Loan were included as a contra liability to debt on the Consolidated Balance Sheets as follows:

	March 31, 2021		September 30, 2020
Current portion of deferred financing fees (1)	$	(2,147)	$	(2,112)
Long-term portion of deferred financing fees (2)	(6,245)		(7,324)
Total deferred financing fees	$	(8,392)	$	(9,436)

(1)Included in Current portion of debt, net of deferred financing fees on the Consolidated Balance Sheets.

(2)Included in Long-term debt, net of deferred financing fees on the Consolidated Balance Sheets.

Schedule of Line of Credit Facilities

The following summarizes the Company’s outstanding borrowings under the Revolver and outstanding letters of credit as of March 31, 2021 and September 30, 2020, respectively.

	March 31, 2021		September 30, 2020
Borrowing availability under the Revolver	$	125,000	$	125,000
Outstanding borrowings under the Revolver	—		—
Outstanding letters of credit under the Revolver	11,904		12,963
Unused amounts under the Revolver	$	113,096	$	112,037
Additional letters of credit under a separate arrangement	$	33	$	52

The following summarizes the Company’s outstanding letters of credit and surety bonds as of March 31, 2021 and September 30, 2020, respectively.

	March 31, 2021		September 30, 2020
Revolving credit capacity	$	45,000	$	45,000
Letters of credit outstanding	11,904		12,963
Remaining revolving credit capacity	$	33,096	$	32,037
Surety capacity	$	250,000	$	230,000
Surety issuances	147,565		152,990
Remaining surety available	$	102,435	$	77,010

Schedule of Aggregate Maturities of Long-term Debt

Aggregate maturities of all long‑term debt, including current portion of long‑term debt and excluding finance lease obligations as of March 31, 2021, are presented below:

Fiscal Year
Remainder of 2021	$	14,982
2022	17,293
2023	17,598
2024	797,448
2025	8,081
Thereafter	34,025
Total	$	889,427

Schedule of Equipment Financing

During the six months ended March 31, 2021, the Company completed the following equipment financings:

Date Entered	Due	Fixed Interest Rate		Principal Amount
March 31, 2021	March 31, 2028	3.85	%	$	3,630
March 31, 2021	April 30, 2021 (1)	3.25	%	2,559
December 31, 2020	April 30, 2021 (1)	3.25	%	3,899
December 30, 2020	December 30, 2027	3.73	%	3,905
				$	13,993

(1)    Represents an advance received from the lender in which the Company is making interest only payments. The Company may convert to a term loan financing for eight years at any time through June 30, 2021