Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statement Of Shareholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.06	$ 0.04	$ 0.12	$ 0.08