Stock Split (Details) (USD $)	0 Months Ended	3 Months Ended
	May 27, 2014	Mar. 31, 2015	Dec. 31, 2014	May 27, 2014
Stock Split [Abstract]
Stock split effective date		Jun. 06, 2014
Stock split conversion ratio	2
Percent of dividend in stock				100.00%
Stock split record date		May 27, 2014
Common shares, par value		$ 2.50	$ 2.50	$ 2.50