Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2015

Stockholders' Equity Note [Abstract]

Summary of dividends declared and paid per share

The following table provides a summary of dividends declared and paid per share:

	Three Months Ended March 31,
	2015				2014
	Declared		Paid		Declared		Paid
Common shares	$	0.870	$	0.870	$	0.780	$	0.780
5.417% Series 1 Cumulative Convertible Preferred shares	$	0.339	$	0.339	$	0.339	$	0.339