Leases (Future Minimum Lease Payments) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases
2021	$ 322,477
2022	309,982
2023	279,443
2024	248,277
2025	209,021
Thereafter	1,046,308
Total operating lease payments	2,415,508
Less: present value discount	374,039
Total operating lease liabilities	2,041,469
Less: current portion of operating lease liabilities	322,778	$ 316,061
Operating lease liabilities, less current portion	1,718,691	$ 1,655,297
Related Parties
Leases
2021	4,589
2022	3,848
2023	3,477
2024	1,730
2025	957
Thereafter	2,064
Total operating lease payments	16,665
Less: present value discount	1,478
Total operating lease liabilities	15,187
Less: current portion of operating lease liabilities	4,589
Operating lease liabilities, less current portion	10,598
Non Related Parties
Leases
2021	317,888
2022	306,134
2023	275,966
2024	246,547
2025	208,064
Thereafter	1,044,244
Total operating lease payments	2,398,843
Less: present value discount	372,561
Total operating lease liabilities	2,026,282
Less: current portion of operating lease liabilities	318,189
Operating lease liabilities, less current portion	$ 1,708,093

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=121609121&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 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).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth 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 third 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.

+ References

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=121603541&loc=SL77918627-209977

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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