Goodwill and Other Intangible Assets (Goodwill) (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) segment	Sep. 30, 2022 USD ($)
Goodwill [Line Items]
Number of reportable segments | segment			7
Impairment of goodwill			$ 97,999
Impairment of goodwill and other long-lived assets	$ 98,321	$ 0	99,066	$ 0
Manufacturing [Member]
Goodwill [Line Items]
Impairment of goodwill			47,760
Education [Member]
Goodwill [Line Items]
Impairment of goodwill			0
Other Businesses [Member]
Goodwill [Line Items]
Impairment of goodwill			50,239
Automotive [Member]
Goodwill [Line Items]
Impairment of goodwill			$ 0
Dekko [Member] | Manufacturing [Member]
Goodwill [Line Items]
Impairment of goodwill	47,800
World of Good Brands [Member] | Other Businesses [Member]
Goodwill [Line Items]
Impairment of goodwill	$ 50,200