Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) (Parenthetical)

v3.8.0.1
Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) (Parenthetical)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]    
Percentage of U.S. federal tax rate 34.00% 34.00%