Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Changes in Equity (Parenthetical)

v3.7.0.1
Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Class A Common Stock      
Common stock dividends, per share $ 0.48 $ 0.48 $ 0.48