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Commitments and Contingencies (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Operating Leases |  |  |
Commitments under operating leases, 2017 | $ 3,850 |  |
Commitments under operating leases, 2018 | 3,919 |  |
Commitments under operating leases, 2019 | 3,725 |  |
Commitments under operating leases, 2020 | 3,405 |  |
Commitments under operating leases, 2021 | 2,114 |  |
Commitments under operating leases, Thereafter | 4,069 |  |
Commitments under operating leases, Total | 21,082 |  |
Minimum payments due on minimum sublease rentals under non-cancelable subleases | 151 |  |
Rent expense included in occupancy expense | 3,900 | $ 4,200 | $ 4,200
Visa Inc. |  |  |
Loss Contingencies [Line Items] |  |  |
Balance of escrow account for legal settlements maintained by Visa | 1,000,000 |  |
Estimated amount due to class plaintiffs in Visa litigation | $ 4,000,000 |  |

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