|9 Months Ended|
Sep. 30, 2018
|Acquisition with a purchase price||
Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef