Note 13 - Long-term Debt (Details Textual)		1 Months Ended	12 Months Ended
	Mar. 28, 2019 USD ($)	Apr. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2017	Nov. 30, 2017 USD ($)
Assets, Total			$ 2,573,517,000	$ 2,523,366,000	$ 2,693,802,000
Net Income (Loss) Attributable to Parent, Total			34,110,000	(9,755,000)	76,001,000
Gain (Loss) on Extinguishment of Debt, Total			657,000	21,352,000	(24,455,000)
Proceeds from Reimbursements from Qualified Expenses			28,867,000
Restricted Cash, Total			48,293,000	0
Long-term Debt, Total			604,641,000	600,589,000
Derivative Liability, Current			517,000	2,834,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Total			1,721,000	(2,004,000)	(117,000)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax			596,000	674,000	37,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax			(2,220,000)	(1,587,000)
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred			428,000
Non-Guarantor Subsidiaries [Member]
Assets, Total			104,548,000	123,468,000
Accounts Receivable, after Allowance for Credit Loss, Total			104,099,000	122,639,000
Net Income (Loss) Attributable to Parent, Total			(54,000)	2,854,000	4,841,000
Senior Secured Second Lien Notes due 2025 [Member]
Repayments of Debt			$ 17,092,000	32,064,000	59,421,000
PEDFA Solid Waste Disposal Revenue Bonds [Member]
Debt Instrument, Interest Rate, Stated Percentage		9.00%	9.00%
Debt Instrument, Face Amount		$ 75,000,000
Debt Instrument, Term (Year)		7 years
Proceeds from Issuance of Debt		$ 75,000,000
Restricted Cash, Total			$ 46,136,000
Long-term Debt, Total			75,000,000	0
Revolving Credit Facility [Member]
Long-term Line of Credit, Total			0	0
Loans Payable [Member] | The TLA Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity												$ 100,000,000
Loans Payable [Member] | Senior Secured Second Lien Notes due 2025 [Member]
Debt Instrument, Covenant, Maximum Amount of Letters of Credit			$ 200,000
Debt Instrument, Covenant, Net Leverage Ratio, Maximum			2.00
Loans Payable [Member] | The TLB Facility [Member]
Repayments of Lines of Credit			$ 4,848,000
Long-term Debt, Percentage Bearing Fixed Interest, Amount			$ 50,000,000	50,000,000	$ 150,000,000
Loans Payable [Member] | The TLB Facility [Member] | Forecast [Member]
Long-term Debt, Percentage Bearing Fixed Interest, Amount						$ 50,000,000
Loans Payable [Member] | The TLB Facility [Member] | Maximum [Member]
Debt Instrument, Repayment, Percent of Excess Cash Flow			75.00%
Loans Payable [Member] | The TLB Facility [Member] | Minimum [Member]
Debt Instrument, Repayment, Percent of Excess Cash Flow			0.00%
Loans Payable [Member] | Revolving Credit Facility [Member]
Finance Lease, Liability, Current			$ 20,743,000	20,115,000
Line of Credit Facility, Maximum Borrowing Capacity												300,000,000
Debt Instrument, Basis Spread on Variable Rate	0.50%
Loans Payable [Member] | Revolving Credit Facility [Member] | Senior Secured Second Lien Notes due 2025 [Member]
Debt Instrument, Covenant, Maximum Additional Borrowings			0
Loans Payable [Member] | The TLB Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity												400,000,000
Line of Credit [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 400,000											$ 300,000,000
Letters of Credit Outstanding, Amount			169,241,000	125,938,000
Line of Credit Facility, Remaining Borrowing Capacity			$ 230,759,000	$ 274,062,000
Line of Credit [Member] | Revolving Credit Facility and TLA Facility [Member]
Debt Instrument, Covenant, Net Leverage Ratio, Maximum			1.49						3.50	3.75
Debt Instrument, Covenant, Fixed Charge Coverage Ratio, Minimum			1.73							1.00
Line of Credit [Member] | Revolving Credit Facility and TLA Facility [Member] | Forecast [Member]
Debt Instrument, Covenant, Net Leverage Ratio, Maximum							2.75
Debt Instrument, Covenant, Fixed Charge Coverage Ratio, Minimum							1.10	1.05
Line of Credit [Member] | Revolving Credit Facility and TLA Facility [Member] | Maximum [Member]
Debt Instrument, Covenant, First Lien Gross Leverage Ratio									2.25	2.50
Line of Credit [Member] | Revolving Credit Facility and TLA Facility [Member] | Maximum [Member] | Forecast [Member]
Debt Instrument, Covenant, Net Leverage Ratio, Maximum								3.25
Debt Instrument, Covenant, First Lien Gross Leverage Ratio							1.75	2.00
Senior Notes [Member] | Senior Secured Second Lien Notes due 2025 [Member]
Debt Instrument, Interest Rate, Stated Percentage			11.00%	11.00%	11.00%						11.00%	11.00%
Repayments of Debt			$ 17,092,000	$ 32,064,000	$ 53,698,000
Debt Instrument, Repurchased Face Amount			18,040,000	54,481,000	$ 52,648,000
Long-term Debt, Total			149,107,000	167,147,000
Secured Debt [Member] | Other Asset-backed Financing Maturing December 2020 [Member]
Debt Instrument, Collateral Amount			2,082,000	$ 2,813,000
Long-term Debt, Total			$ 2,082,000
Debt, Weighted Average Interest Rate			3.61%	3.61%