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+ References

No definition available.

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Adoption of New Accounting Policy - ASU-2014-09 (Details) - USD ($) $ in Thousands	Jan. 01, 2018	Sep. 30, 2018	Dec. 31, 2017
Revenue contracts
Revenue, Practical Expedient, Initial Application and Transition, Completed Contract, Use of Transaction Price at Contract Completion Date	true
Contract assets		$ 6,857	$ 1,842
Data analysis
Revenue contracts
Contract assets		$ 4,732	$ 1,842