|12 Months Ended|
Dec. 31, 2018
|Goodwill and Intangible Assets Disclosure [Abstract]|
|Schedule of changes in the carrying amount of goodwill||
The changes in the carrying amount of goodwill for the twelve months ended December 31, 2018 and 2017 are as follows:
Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef