Commitments

9 Months Ended

Jun. 30, 2022

Commitments and Contingencies Disclosure [Abstract]

Letters of Credit

Under the Revolving Credit Facility, the Company has a total capacity of $325.0 million that may be used for a combination of cash borrowings and letter of credit issuances. At June 30, 2022, the Company had aggregate letters of credit outstanding in the amount of $11.3 million, primarily related to certain insurance policies.

Purchase Commitments

As of June 30, 2022, the Company had unconditional purchase commitments for diesel fuel and natural gas in the normal course of business in the aggregate amount of $6.9 million and $1.5 million, respectively. Management does not expect any significant changes in the market value of these goods during the commitment period that would have a material adverse effect on the financial condition, results of operations and cash flows of the Company. As of June 30, 2022, the Company's purchase commitments annually thereafter are as follows (in thousands):


Fiscal Year	Amount
Remainder of 2022	$	2,795
2023	4,827
2024	780
Total	$	8,402

Minimum Royalties

The Company has lease agreements associated with aggregates facilities under which the Company makes royalty payments. These agreements are outside the scope of Topic 842. The payments are generally based on tons sold in a particular period; however, certain agreements have minimum annual payments. The Company has commitments in the form of minimum royalties as of June 30, 2022 in the amount of $2.7 million, due as follows (in thousands):


Fiscal Year	Amount
Remainder of 2022	$	12
2023	255
2024	245
2025	209
2026	182
Thereafter	1,785
Total	$	2,688

Royalty expense recorded in cost of revenue was $0.4 million and $0.3 million for the three months ended June 30 2022 and 2021, respectively, and $1.2 million and $0.7 million for the nine months ended June 30, 2022 and 2021, respectively.