Lease Accounting (Maturity of Lease Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Operating Leased Assets [Line Items]
2023	$ 25,843
2024	24,253
2025	21,581
2026	17,054
2027	13,967
Thereafter	131,886
Total Lease Payments	234,584
Less: Interest	(102,762)
Present value of operating lease liabilities	131,822	$ 141,820
Transportation equipment
Operating Leased Assets [Line Items]
2023	18,928
2024	17,889
2025	14,372
2026	9,965
2027	7,110
Thereafter	7,092
Total Lease Payments	75,356
Less: Interest	(10,644)
Present value of operating lease liabilities	64,712
Office Space and Equipment
Operating Leased Assets [Line Items]
2023	1,386
2024	1,359
2025	2,168
2026	1,997
2027	1,721
Thereafter	9,445
Total Lease Payments	18,076
Less: Interest	(5,601)
Present value of operating lease liabilities	12,475
Facilities and Equipment
Operating Leased Assets [Line Items]
2023	5,529
2024	5,005
2025	5,041
2026	5,092
2027	5,136
Thereafter	115,349
Total Lease Payments	141,152
Less: Interest	(86,517)
Present value of operating lease liabilities	$ 54,635

Amount of lessee's undiscounted obligation for lease payment for operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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