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Leases (Schedule of Maturity of Lease Liabilities) (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Operating Leases |  |  |
October 1, 2019 to September 30, 2020 |  | $ 60,630 |
October 1, 2020 to September 30, 2021 |  | 49,507 |
October 1, 2021 to September 30, 2022 |  | 40,141 |
October 1, 2022 to September 30, 2023 |  | 33,471 |
October 1, 2023 to September 30, 2024 |  | 24,566 |
Thereafter |  | 73,298 |
Total minimum lease payments |  | 281,613 |
Less: Amount of lease payments representing interest |  | (36,479) |
Present value of future minimum lease payments |  | 245,134 |
Current portion of lease liabilities |  | 51,632 | $ 0
Noncurrent portion of lease liabilities |  | 193,502 | 0
Finance Leases |  |  |
October 1, 2019 to September 30, 2020 |  | 4,507 |
October 1, 2020 to September 30, 2021 |  | 3,077 |
October 1, 2021 to September 30, 2022 |  | 1,857 |
October 1, 2022 to September 30, 2023 |  | 838 |
October 1, 2023 to September 30, 2024 |  | 164 |
Thereafter |  | 142 |
Total minimum lease payments |  | 10,585 |
Less: Amount of lease payments representing interest |  | (605) |
Present value of future minimum lease payments | [1] | 9,980 | $ 4,213
Current portion of lease liabilities |  | 4,192 |
Noncurrent portion of lease liabilities |  | $ 5,788 |
[1] | See Note 14 - Leases for further disclosure regarding finance lease obligations.

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