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Stockholders' Equity Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2017

Stockholders' Equity Attributable to Parent [Abstract]

Quarterly dividends declared [Table Text Block]

The Board declared quarterly dividends as follows:

		2017				2016
		(amounts per share)
First quarter		$	0.25			$	0.22
Second quarter		0.30				0.25
Third quarter		0.30				0.25

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- Definition

Quarterly dividends declared [Table Text Block] - tabular disclosure of all or some of the information related to dividends declared and paid as of the financial reporting date.

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