Shareholders' Equity (Details) - $ / shares	3 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Dividend declared (in dollars per share)	$ 0.30	$ 0.30	$ 0.30	$ 0.25	$ 0.25	$ 0.25
Common Stock, Dividends, Per Share, Cash Paid	$ 0.30	0.30		$ 0.25	0.25
Common Stock, Dividend Declared Prior Period, Paid Current Period		$ 0.30			$ 0.25