Consolidated Statements of Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement Of Stockholders Equity [Abstract]
Dividends Declared and Paid	$ 0.04	$ 0.04	$ 0.04	$ 0.04