Description of the Business and Summary of Significant Accounting Policies (Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 676,186	$ 676,186
Less accumulated amortization	380,841	351,609
Intangible Assets, Net (Excluding Goodwill), Total	295,345	324,577
Amortization of intangible assets	29,232	28,999	$ 29,577
Estimated amortization expense
2022	27,840
2023	27,439
2024	26,701
2025	24,783
2026	23,820
Thereafter	164,762
Total	295,345
Impairment of Long-Lived Tangible and Definite-Lived Intangible Assets
Asset impairment charges		19,409
Corporate Joint Venture [Member]
Impairment of Long-Lived Tangible and Definite-Lived Intangible Assets
Asset impairment charges		19,400
Reduction of net income related to asset impairment		12,000
Other current assets
Impairment of Long-Lived Tangible and Definite-Lived Intangible Assets
Assets held for sale	$ 7,100	7,200
Noncontrolling Interests | Corporate Joint Venture [Member]
Impairment of Long-Lived Tangible and Definite-Lived Intangible Assets
Asset impairment charges		2,400
Weighted average
Finite-Lived Intangible Assets [Line Items]
Useful Life	21 years
Customer, vendor and scrap generator relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 526,886	526,886
Customer, vendor and scrap generator relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 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	21 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	$ 1,350	$ 1,350
Useful Life	5 years
Other Intangible Assets [Member] | Weighted average
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years