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Leases (Schedule Of Maturity Of Lease Liabilities) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Leases [Abstract] |  |
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year | $ 122,750 |
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months | 300,235 | $ 294,191
Lessee, Operating Lease, Liability, Payments, Due Year Two | 297,968 | 296,579
Lessee, Operating Lease, Liability, Payments, Due Year Three | 297,663 | 294,941
Lessee, Operating Lease, Liability, Payments, Due Year Four | 293,305 | 295,290
Lessee, Operating Lease, Liability, Payments, Due after Year Four | 2,517,991 |
Lessee, Operating Lease, Liability, Payments, Due Year Five |  | 290,980
Lessee, Operating Lease, Liability, Payments, Due after Year Five |  | 2,478,397
Total lease payments | 3,829,912 | $ 3,950,378
Less: imputed interest | 1,133,890 |
Present value of lease liabilities | $ 2,696,022 |

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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease. + References 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=77888426&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year. + References 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=77888426&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in next fiscal year following latest fiscal year. + References 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=77888426&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year. + References 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=77888426&loc=SL77918701-209980 + Details
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