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Commitments and Contingencies - Minimum Lease Payments (Details) $ in Thousands | Dec. 31, 2017 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
2018 | $ 38,357
2019 | 34,587
2020 | 32,552
2021 | 30,673
2022 | 28,985
Thereafter | 243,242
Total minimum lease payments | 408,396
Less: sublease rentals | (8,005)
Future minimum payments, net | $ 400,391

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