v3.10.0.1

Goodwill and intangible assets - Carrying Amount (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Intangible assets |  |  |
Historical Cost | $ 36,424 | $ 28,905 |
Accumulated Amortization | (17,272) | (18,642) |
Net | 19,152 | 10,263 | $ 13,783
Venue contracts |  |  |
Intangible assets |  |  |
Historical Cost | 20,530 | 22,061 |
Accumulated Amortization | (13,829) | (13,835) |
Net | 6,701 | 8,226 |
Backlog |  |  |
Intangible assets |  |  |
Historical Cost | 7,030 |  |
Accumulated Amortization | (586) |  |
Net | 6,444 |  |
Customer and partner relationships |  |  |
Intangible assets |  |  |
Historical Cost | 3,780 |  |
Accumulated Amortization | (206) |  |
Net | 3,574 |  |
Non-compete agreements, technology and other |  |  |
Intangible assets |  |  |
Historical Cost | 5,084 | 6,844 |
Accumulated Amortization | (2,651) | (4,807) |
Net | $ 2,433 | $ 2,037 |

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