Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Consolidated Statement Of Shareholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.08	$ 0.06	$ 0.16	$ 0.12