Employee Benefit Plans and Other Postretirement Benefits - Schedule Of Fair Value Of Pension Plan and Postretirement Healthcare Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits
Defined Benefit Plan Disclosure
Total benefit plan assets	$ 1,809,543	$ 2,486,467
Pension Benefits | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	1,805,734	2,478,153
Pension Benefits | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	945,043	1,487,413
Pension Benefits | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	860,691	990,740
Pension Benefits | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Total benefit plan assets	3,809	8,314
Pension Benefits | Cash and cash equivalents | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	43,062	55,192
Pension Benefits | Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Pension Benefits | Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	43,062	55,192
Pension Benefits | Equity Holdings | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	801,479	1,367,317
Pension Benefits | Equity Holdings | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	801,439	1,355,961
Pension Benefits | Equity Holdings | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	40	11,356
Pension Benefits | U.S. companies | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	537,587	949,787
Pension Benefits | U.S. companies | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	537,548	942,297
Pension Benefits | U.S. companies | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	39	7,490
Pension Benefits | Foreign companies | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	22,445	67,111
Pension Benefits | Foreign companies | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	22,444	63,245
Pension Benefits | Foreign companies | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	1	3,866
Pension Benefits | Pooled equity funds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	241,412	350,356
Pension Benefits | Pooled equity funds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	241,412	350,356
Pension Benefits | Pooled equity funds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Pension Benefits | Other | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	35	63
Pension Benefits | Other | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	35	63
Pension Benefits | Other | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Pension Benefits | Fixed-income holdings | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	961,193	1,055,644
Pension Benefits | Fixed-income holdings | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	143,604	131,452
Pension Benefits | Fixed-income holdings | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	817,589	924,192
Pension Benefits | U.S. Treasuries | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	94,128	76,943
Pension Benefits | U.S. Treasuries | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	94,128	76,943
Pension Benefits | U.S. Treasuries | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Pension Benefits | Federal agencies | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	11,054	14,680
Pension Benefits | Federal agencies | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Pension Benefits | Federal agencies | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	11,054	14,680
Pension Benefits | Corporate bonds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	640,875	690,319
Pension Benefits | Corporate bonds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Pension Benefits | Corporate bonds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	640,875	690,319
Pension Benefits | Pooled fixed income funds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	111,649	148,860
Pension Benefits | Pooled fixed income funds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	49,472	54,302
Pension Benefits | Pooled fixed income funds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	62,177	94,558
Pension Benefits | Foreign bonds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	93,112	112,293
Pension Benefits | Foreign bonds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	4	207
Pension Benefits | Foreign bonds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	93,108	112,086
Pension Benefits | Municipal bonds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	10,375	12,549
Pension Benefits | Municipal bonds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Pension Benefits | Municipal bonds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	10,375	12,549
Pension Benefits | Private equity investments | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Total benefit plan assets	799	509
Pension Benefits | Real estate investments | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Total benefit plan assets	3,010	7,805
Postretirement Healthcare Benefits
Defined Benefit Plan Disclosure
Total benefit plan assets	205,803	262,945	$ 244,035
Postretirement Healthcare Benefits | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	190,597	242,999
Postretirement Healthcare Benefits | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	180,126	234,249
Postretirement Healthcare Benefits | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	10,471	8,750
Postretirement Healthcare Benefits | Cash and cash equivalents | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	7,998	6,081
Postretirement Healthcare Benefits | Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Postretirement Healthcare Benefits | Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	7,998	6,081
Postretirement Healthcare Benefits | Equity Holdings | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	139,984	188,182
Postretirement Healthcare Benefits | Equity Holdings | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	139,984	188,149
Postretirement Healthcare Benefits | Equity Holdings | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	33
Postretirement Healthcare Benefits | U.S. companies | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	95,014	132,812
Postretirement Healthcare Benefits | U.S. companies | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	95,014	132,790
Postretirement Healthcare Benefits | U.S. companies | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	22
Postretirement Healthcare Benefits | Foreign companies | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	20,784	25,062
Postretirement Healthcare Benefits | Foreign companies | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	20,784	25,051
Postretirement Healthcare Benefits | Foreign companies | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	11
Postretirement Healthcare Benefits | Pooled equity funds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	24,181	30,302
Postretirement Healthcare Benefits | Pooled equity funds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	24,181	30,302
Postretirement Healthcare Benefits | Pooled equity funds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Postretirement Healthcare Benefits | Other | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	5	6
Postretirement Healthcare Benefits | Other | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	5	6
Postretirement Healthcare Benefits | Other | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Postretirement Healthcare Benefits | Fixed-income holdings | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	42,615	48,736
Postretirement Healthcare Benefits | Fixed-income holdings | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	40,142	46,100
Postretirement Healthcare Benefits | Fixed-income holdings | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	2,473	2,636
Postretirement Healthcare Benefits | U.S. Treasuries | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	287	221
Postretirement Healthcare Benefits | U.S. Treasuries | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	287	221
Postretirement Healthcare Benefits | U.S. Treasuries | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Postretirement Healthcare Benefits | Federal agencies | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	34	42
Postretirement Healthcare Benefits | Federal agencies | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Postretirement Healthcare Benefits | Federal agencies | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	34	42
Postretirement Healthcare Benefits | Corporate bonds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	1,938	1,967
Postretirement Healthcare Benefits | Corporate bonds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Postretirement Healthcare Benefits | Corporate bonds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	1,938	1,967
Postretirement Healthcare Benefits | Pooled fixed income funds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	40,043	46,150
Postretirement Healthcare Benefits | Pooled fixed income funds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	39,855	45,878
Postretirement Healthcare Benefits | Pooled fixed income funds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	188	272
Postretirement Healthcare Benefits | Foreign bonds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	282	320
Postretirement Healthcare Benefits | Foreign bonds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	1
Postretirement Healthcare Benefits | Foreign bonds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	282	319
Postretirement Healthcare Benefits | Municipal bonds | Fair Value, Inputs, Level 1 and 2
Defined Benefit Plan Disclosure
Total benefit plan assets	31	36
Postretirement Healthcare Benefits | Municipal bonds | Level 1
Defined Benefit Plan Disclosure
Total benefit plan assets	0	0
Postretirement Healthcare Benefits | Municipal bonds | Level 2
Defined Benefit Plan Disclosure
Total benefit plan assets	31	36
Postretirement Healthcare Benefits | Private equity investments | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Total benefit plan assets	13,502
Postretirement Healthcare Benefits | Limited partnership interests | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Total benefit plan assets		15,593
Postretirement Healthcare Benefits | Real estate investments | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure
Total benefit plan assets	$ 1,704	$ 4,353