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Equity and Dividends (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	Aug. 08, 2017	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Dividends Payable [Line Items]
Preferred shares issued			0		0
Stock repurchased during period, shares		1,460,000			0
Intra-entity foreign currency transactions			$ 7,817	$ (271)	$ 11,484	$ (8,611)
Subsequent Event [Member]
Dividends Payable [Line Items]
Dividends declared (usd per share)	$ 0.17
Payment date	Sep. 15, 2017
Record date	Aug. 25, 2017