Description of the Business and Summary of Significant Accounting Policies (Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 593,362	$ 569,062
Less accumulated amortization	335,603	301,555
Intangible Assets, Net (Excluding Goodwill), Total	257,759	267,507
Amortization of intangible assets	34,048	27,837	$ 29,232
Estimated amortization expense
2024	30,526
2025	27,464
2026	25,562
2027	23,163
2028	21,953
Thereafter	129,091
Total	$ 257,759
Weighted average
Finite-Lived Intangible Assets [Line Items]
Useful Life	22 years
Customer, vendor and scrap generator relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 444,812	420,512
Customer, vendor and scrap generator relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	8 years
Customer, vendor and scrap generator relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	25 years
Customer, vendor and scrap generator relationships | Weighted average
Finite-Lived Intangible Assets [Line Items]
Useful Life	22 years
Trade names
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 147,950	147,950
Trade names | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	15 years
Trade names | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	25 years
Trade names | Weighted average
Finite-Lived Intangible Assets [Line Items]
Useful Life	19 years
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 600	$ 600
Useful Life	5 years
Other Intangible Assets [Member] | Weighted average
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years