Stockholders' Equity Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2015

Stockholders' Equity Attributable to Parent [Abstract]

Quarterly dividends declared [Table Text Block]

The Board declared quarterly dividends as follows:

	2015		2014
	(amounts per share)
First quarter	$	0.19	$	0.17
Second quarter	0.22		0.19