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Lease Agreements - Company as Lessor (Details) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2019 USD ($) building | Dec. 31, 2018 USD ($) building
Lessor, Lease, Description [Line Items] |  |
Number of commercial buildings under lease agreements | building | 1 | 1
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract] |  |
Remaining in 2019 | $ 511,596 |
2020 | 232,775 |
2021 | 14,872 |
2022 | 13,650 |
2023 | 12,614 |
Thereafter | 34,218 |
Operating leases | $ 819,725 |
Operating Leases, Future Minimum Payments Receivable [Abstract] |  |
2019 |  | $ 16,386
2020 |  | 15,842
2021 |  | 14,412
2022 |  | 13,324
2023 |  | 12,181
Thereafter |  | 33,034
Future minimum receivables |  | $ 105,179
Minimum |  |
Lessor, Lease, Description [Line Items] |  |
Short-term lease terms | 9 months |
Commercial lease terms | 5 years |
Maximum |  |
Lessor, Lease, Description [Line Items] |  |
Short-term lease terms | 12 months |
Commercial lease terms | 20 years |

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- Definition Amount of lease payments to be received by lessor for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919396-209981 + Details
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- Definition Amount of lease payments to be received by lessor in fifth fiscal year following latest fiscal year for operating lease. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919396-209981 + Details
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