Long-Term Debt - Narrative (Details) T in Billions	1 Months Ended	3 Months Ended						9 Months Ended
	Apr. 30, 2021 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2024 USD ($) T	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Mar. 28, 2023 USD ($)
Debt Instrument [Line Items]
Number of tons | T								1.3
Assets		$ 2,824,117,000			$ 2,659,515,000			$ 2,824,117,000	$ 2,659,515,000	$ 2,675,003,000
Net Income		$ 95,632,000	$ 58,061,000	$ 101,891,000	100,725,000	$ 167,723,000	$ 230,377,000	$ 255,584,000	498,825,000
PEDFA Solid Waste Disposal Revenue Bonds
Debt Instrument [Line Items]
Debt instrument, face amount	$ 75,000,000,000
Debt instrument, interest rate, stated percentage	9.00%	9.00%						9.00%		9.00%
Debt instrument, term	7 years
Restricted cash		$ 261,000						$ 261,000		$ 12,177,000
Senior Secured Second Lien Notes due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	11.00%
PEDFA Solid Waste Disposal Revenue Bonds Due April 2028 | Restricted Cash
Debt Instrument [Line Items]
Payment of capital construction project, qualified costs		5,206,000			8,442,000			12,247,000	16,313,000
Non-Guarantor Subsidiaries
Debt Instrument [Line Items]
Assets		129,143,000						129,143,000		147,918,000
Accounts receivable, after allowance for credit loss		128,901,000						128,901,000		147,612,000
Net Income		528,000			$ 235,000			775,000	$ 4,843,000
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term line of credit		0						0		0
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity						355,000,000					$ 260,000,000
Line of credit facility, maximum borrowing capacity, option to increase, maximum increase amount						45,000,000
Line of credit facility, maximum borrowing capacity, option to increase, maximum amount						$ 400,000,000
Letters of credit outstanding, amount		123,873,000						123,873,000		111,186,000
Line of credit facility, remaining borrowing capacity		$ 231,127,000						$ 231,127,000		$ 243,814,000
Revolving Credit Facility and TLA Facility | Line of Credit
Debt Instrument [Line Items]
Debt instrument, covenant, net leverage ratio, maximum					2.50				2.50
Debt instrument, covenant, fixed charge coverage ratio, minimum					1.10				1.10
Debt instrument, covenant, first lien gross leverage ratio, actual		0.02						0.02
Debt instrument, covenant, net leverage ratio, actual		(0.31)						(0.31)
Debt instrument, covenant, fixed charge coverage ratio, actual		2.88						2.88
Revolving Credit Facility and TLA Facility | Line of Credit | Maximum
Debt Instrument [Line Items]
Debt instrument, covenant, first lien gross leverage ratio					1.50				1.50