Fair Value Measurement and Derivative Transactions (Tables)

12 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Derivative Assets at Fair Value

A summary of the fair values for the various derivatives, which are all measured using Level 2 inputs, at March 31, 2023 and 2022 is presented below:

	Diesel fuel option collars and swaps
	Assets				Liabilities
(Amounts in thousands)	Receivables		Other assets		Other accrued liabilities		Other liabilities
March 31, 2023	$	393	$	156	$	(1,323)	$	(311)
March 31, 2022	$	2,499	$	119	$	(64)	$	—

Schedule of Derivative Liabilities at Fair Value

A summary of the fair values for the various derivatives, which are all measured using Level 2 inputs, at March 31, 2023 and 2022 is presented below:

	Diesel fuel option collars and swaps
	Assets				Liabilities
(Amounts in thousands)	Receivables		Other assets		Other accrued liabilities		Other liabilities
March 31, 2023	$	393	$	156	$	(1,323)	$	(311)
March 31, 2022	$	2,499	$	119	$	(64)	$	—

Summary of Carrying And Fair Value of Senior Notes

The following table presents the carrying and fair value of the Company’s 2027 Notes, 2030 Notes and Equipment Financing (as further discussed in “Note 12. Debt”) for the periods presented:

	March 31, 2023				March 31, 2022
(Amounts in thousands)	Fair Value		Carrying Value		Fair Value		Carrying Value
Senior Notes due 2027	$	333,970	$	350,000	$	349,902	$	350,000
Senior Notes due 2030	496,605		500,000		—		—
Equipment Financing	17,921		18,638		29,302		31,254
Total	$	848,496	$	868,638	$	379,204	$	381,254