Shareholders’ Equity (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 Vote	Sep. 30, 2016 USD ($)
Preferred Stock [Abstract]
Stock Redeemed or Called During Period, Value | $		$ 9,992
Class A - Common stock
Common Stock [Abstract]
Number of vote for class of shares held	1
Class B - Common stock
Common Stock [Abstract]
Number of shares received after conversion, per share	1.15
Number of vote for class of shares held	10