|12 Months Ended|
Dec. 31, 2016
|Business Combinations [Abstract]|
|Schedule of total purchase price for TBL acquisition||
The total purchase price for the TBL acquisition was allocated as follows:
Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts.
Reference 1: http://www.xbrl.org/2003/role/presentationRef