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Revenue From Contracts With Customer (Changes in Contract Assets and Contract Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Jan. 01, 2018
--- | --- | ---
Contract assets |  |
Contract assets | $ 10,102 |
Contract liabilities |  |
Contract liabilities - current | 52,606 |
Contract liabilities - long-term | $ 1,413 |
Before Adoption of Standard |  |
Contract assets |  |
Contract assets |  | $ 0
Contract liabilities |  |
Contract liabilities - current |  | 46,508
Contract liabilities - long-term |  | 182
ASC 606 | Adoption of Standard |  |
Contract assets |  |
Contract assets |  | $ 10,102
Contract assets, percent change |  | 100.00%
Contract liabilities |  |
Contract liabilities - current |  | $ 6,098
Contract liabilities - current, Change |  | 13.10%
Contract liabilities - long-term |  | $ 1,231
Contract liabilities - long-term, change |  | 676.40%

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