Debt (Tables)

9 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Schedule of Line of Credit Facilities [Table Text Block]

The following summarizes the Company’s outstanding borrowings under the Revolver and outstanding letters of credit as of June 30, 2020 and September 30, 2019, respectively.

	June 30, 2020		September 30, 2019
Borrowing availability under the Revolver	$	125,000	$	125,000
Outstanding borrowings under the Revolver	—		—
Outstanding letters of credit under the Revolver	11,872		12,956
Unused amounts under the Revolver	$	113,128	$	112,044
Additional letters of credit under a separate arrangement	$	51	$	204

The following summarizes the Company’s outstanding letters of credit and surety bonds as of June 30, 2020 and September 30, 2019, respectively.

	June 30, 2020		September 30, 2019
Revolving credit capacity	$	45,000	$	45,000
Letters of credit outstanding	11,872		12,956
Remaining revolving credit capacity	$	33,128	$	32,044
Surety capacity	$	230,000	$	220,000
Surety issuances	148,108		144,717
Remaining surety available	$	81,892	$	75,283

Schedule of Long-term Debt Instruments

Long‑term debt consists of the following:

	June 30, 2020			September 30, 2019
First Lien Term Loan, due December 20, 2024	$	821,646		$	928,753
Revolving Credit Facility	—			—
Equipment Financing, due June 30, 2024 to July 5, 2029, interest rates ranging from 3.84% to 8.07%	56,003			45,960
Notes Payable, due July 31, 2023	661			807
Mortgage, due June 30, 2028	1,617			1,635
Total debt	879,927			977,155
Less unamortized discount and lender fees	(9,957		)	(12,138		)
Total net debt	869,970			965,017
Less current portion	(14,611		)	(13,418		)
Total long‑term debt	$	855,359		$	951,599

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 June 30, 2020, are presented below:

Fiscal Year
Remainder of 2020	$	3,638
2021	14,661
2022	14,915
2023	15,125
2024	15,051
Thereafter	816,537
Total	$	879,927