Employee Benefit Plans - Obligations and Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Change in plan assets:
Benefits paid		$ (17,680)
Amounts recognized in the consolidated balance sheets consist of:
Defined benefit and other post-retirement benefit plans	$ (86,066)	(92,630)
Accumulated Other Comprehensive Loss (Earnings):
Accumulated benefit obligations	591,114	560,057
Qualified Defined Benefits | United States
Change in plan assets:
Fair value of plan assets at beginning of year	394,053	573,100
Fair value of plan assets at end of year	392,519	394,053	$ 573,100
Qualified Defined Benefits | Foreign Plan
Change in plan assets:
Fair value of plan assets at beginning of year	152,860	219,677
Fair value of plan assets at end of year	175,765	152,860	219,677
Qualified Defined Benefits | Qualified Defined Benefits | United States
Change in benefit obligation:
Benefit obligation at beginning of year	319,901	478,346
Service cost	2,867	5,703	7,134
Interest cost	17,203	13,745	13,605
Plan participants' contributions	0	0
Benefits paid	(17,701)	(17,680)
Actuarial (loss) gains	22,384	(126,985)
Amendments	0	0
Settlements and curtailments	(25,348)	(33,228)
Currency translation and other	0	0
Benefit obligation at end of year	319,306	319,901	478,346
Change in plan assets:
Fair value of plan assets at beginning of year	394,053
Actual return on plan assets	40,633	(125,011)
Company contributions	0	0
Plan participants' contributions	0	0
Benefits paid	(17,701)
Settlements and curtailments	(24,466)	(36,356)
Currency translation and other	0	0
Fair value of plan assets at end of year	392,519	394,053
Funded (Unfunded) status	73,213	74,152
Amounts recognized in the consolidated balance sheets consist of:
Other assets and deferred charges	73,213	74,152
Accrued compensation and employee benefits	0	0
Liabilities held for sale	0	0
Defined benefit and other post-retirement benefit plans	0	0
Total assets (liabilities)	73,213	74,152
Accumulated Other Comprehensive Loss (Earnings):
Net actuarial losses (gains)	57,870	55,227
Prior service cost (credit)	0	0
Tax (benefit) expense	(12,075)	(11,474)
Total accumulated other comprehensive loss (earnings), net of tax	45,795	43,753
Net amount recognized at December 31,	119,008	117,905
Accumulated benefit obligations	319,306	318,275
Qualified Defined Benefits | Qualified Defined Benefits | Foreign Plan
Change in benefit obligation:
Benefit obligation at beginning of year	215,317	314,715
Service cost	3,712	4,675	5,749
Interest cost	10,591	5,220	3,590
Plan participants' contributions	2,251	2,186
Benefits paid	(11,953)	(9,756)
Actuarial (loss) gains	16,884	(72,977)
Amendments	41	(2,291)
Settlements and curtailments	(1,116)	(8,849)
Currency translation and other	14,302	(17,606)
Benefit obligation at end of year	250,029	215,317	314,715
Change in plan assets:
Fair value of plan assets at beginning of year	152,860
Actual return on plan assets	11,935	(48,147)
Company contributions	9,516	9,059
Plan participants' contributions	2,251	2,186
Benefits paid	(11,953)	(9,756)
Settlements and curtailments	(298)	(8,640)
Currency translation and other	11,454	(11,519)
Fair value of plan assets at end of year	175,765	152,860
Funded (Unfunded) status	(74,264)	(62,457)
Amounts recognized in the consolidated balance sheets consist of:
Other assets and deferred charges	1,938	1,863
Accrued compensation and employee benefits	(731)	(1,774)
Liabilities held for sale	(18,044)	0
Defined benefit and other post-retirement benefit plans	(57,427)	(62,546)
Total assets (liabilities)	(74,264)	(62,457)
Accumulated Other Comprehensive Loss (Earnings):
Net actuarial losses (gains)	42,926	31,607
Prior service cost (credit)	(2,222)	(3,006)
Tax (benefit) expense	(8,947)	(6,434)
Total accumulated other comprehensive loss (earnings), net of tax	31,757	22,167
Net amount recognized at December 31,	(42,507)	(40,290)
Accumulated benefit obligations	242,619	210,259
Non-Qualified Supplemental Benefits | Non-Qualified Supplemental Benefits
Change in benefit obligation:
Benefit obligation at beginning of year	32,503	42,905
Service cost	970	1,426	1,561
Interest cost	1,636	1,215	1,232
Plan participants' contributions	0	0
Benefits paid	(6,582)	(3,831)
Actuarial (loss) gains	662	(9,596)
Amendments	0	384
Settlements and curtailments	0	0
Currency translation and other	0	0
Benefit obligation at end of year	29,189	32,503	42,905
Change in plan assets:
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Company contributions	6,582	3,831
Plan participants' contributions	0	0
Benefits paid	(6,582)	(3,831)
Settlements and curtailments	0	0
Currency translation and other	0	0
Fair value of plan assets at end of year	0	0	$ 0
Funded (Unfunded) status	(29,189)	(32,503)
Amounts recognized in the consolidated balance sheets consist of:
Other assets and deferred charges	0	0
Accrued compensation and employee benefits	(5,477)	(7,243)
Liabilities held for sale	0	0
Defined benefit and other post-retirement benefit plans	(23,712)	(25,260)
Total assets (liabilities)	(29,189)	(32,503)
Accumulated Other Comprehensive Loss (Earnings):
Net actuarial losses (gains)	(24,435)	(28,304)
Prior service cost (credit)	0	1,874
Tax (benefit) expense	5,313	5,768
Total accumulated other comprehensive loss (earnings), net of tax	(19,122)	(20,662)
Net amount recognized at December 31,	(48,311)	(53,165)
Accumulated benefit obligations	$ 29,189	$ 31,523