Accumulated Other Comprehensive Loss (Reclassification out of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Revenue	$ 3,266,348	$ 3,538,042	$ 3,673,561
Interest expense	(100,445)	(89,980)	(96,886)
Selling, general and administrative expense	(897,260)	(905,570)	(924,163)
(Loss) income from continuing operations before income taxes	(406,502)	39,880	(7,415)
Tax provision (benefit)	20,875	(2,940)	10,922
Net of tax	(385,627)	36,940	(1,351)
Amounts Reclassified from AOCI | Cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Revenue	0	0	289
Cost of sales	(33)	178	(117)
Interest expense	9,708	549	(366)
(Loss) income from continuing operations before income taxes	9,675	727	(194)
Tax provision (benefit)	2,419	181	(49)
Net of tax	7,256	546	(145)
Amounts Reclassified from AOCI | Available-for-sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Revenue	(11)	(9)	(6)
Selling, general and administrative expense	0	0	(7)
(Loss) income from continuing operations before income taxes	(11)	(9)	(13)
Tax provision (benefit)	(3)	(2)	(2)
Net of tax	(8)	(7)	(11)
Amounts Reclassified from AOCI | Pension and postretirement benefit plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
(Loss) income from continuing operations before income taxes	(18,193)	(40,601)	(52,561)
Tax provision (benefit)	(4,461)	(9,315)	(12,755)
Net of tax	(13,732)	(31,286)	(39,806)
Amounts Reclassified from AOCI | Prior service costs
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension and postretirement benefit plans	(266)	(208)	(337)
Amounts Reclassified from AOCI | Actuarial losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension and postretirement benefit plans	(17,181)	(39,999)	(51,673)
Amounts Reclassified from AOCI | Settlement
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pension and postretirement benefit plans	$ (746)	$ (394)	$ (551)