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Lease (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jan. 01, 2019 | Jun. 30, 2019 | Jun. 30, 2019 | Dec. 31, 2018
Lessee, Lease, Description [Line Items] |  |  |  |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | $ 296,900 |  | $ 157,914 |
Operating Lease, Weighted Average Remaining Lease Term |  | 4 years 6 months | 4 years 6 months |
Lease, Cost [Table Text Block] |  | $ 33,113 | $ 63,573 |
Right of use lease asset |  | 376,343 | 376,343 |
Current portion of operating lease liabilities |  | 124,131 | 124,131 |
Operating lease obligations, net of current portion |  | 241,630 | 241,630 |
Lessee, operating lease, liability, payments due remainder of fiscal year |  | 64,248 | 64,248 |
Lessee, operating lease, liability, payments due year two |  | 107,916 | 107,916 |
Lessee, operating lease, liability, payments due year three |  | 78,654 | 78,654 |
Lessee, operating lease, liability, payments due year four |  | 53,295 | 53,295 |
Lessee, Operating Lease, Liability, Payments, Due Year Five |  | 33,856 | 33,856 |
Lessee, operating lease, liability, payments due after year five |  | 53,388 | 53,388 |
Lessee, operating lease, liability, payments due |  | 391,357 | 391,357 |
Operating Lease, Liability |  | 365,761 | 365,761 |
Operating Leases, Future Minimum Payments Due, Next Twelve Months |  |  |  | $ 80,803
Operating Leases, Future Minimum Payments, Due in Two Years |  |  |  | 65,590
Operating Leases, Future Minimum Payments, Due in Three Years |  |  |  | 49,052
Operating Leases, Future Minimum Payments, Due in Four Years |  |  |  | 37,823
Operating Leases, Future Minimum Payments, Due in Five Years |  |  |  | 30,192
Operating Leases, Future Minimum Payments, Due Thereafter |  |  |  | 48,191
Operating Leases, Future Minimum Payments Due |  |  |  | $ 311,651
Capital Leases, Future Minimum Payments, Interest Included in Payments |  | (25,596) | (25,596) |
Variable Lease, Cost |  | 12,320 | 18,889 |
Operating Lease, Expense |  | $ 45,433 | $ 82,462 |
Operating Lease, Weighted Average Discount Rate, Percent |  | 3.10% | 3.10% |

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