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Other non-operating income / (expense) (Tables)

12 Months Ended

Dec. 31, 2016

Other non-operating income / (expense)

Schedule of other non-operating income / (expense)

		Years ended December 31,
		2016			2015			2014
		in thousands
Other non-operating income:
Derivative gains		$	785		$	423		$	21
​	​	​	​	​	​	​	​	​	​	​
Total other non-operating income:		$	785		$	423		$	21
​	​	​	​	​	​	​	​	​	​	​
Other non-operating expense:
Derivative losses			—			(7,587	)		—
​	​	​	​	​	​	​	​	​	​	​
Total other non-operating expense:		$	—		$	(7,587	)	$	—
​	​	​	​	​	​	​	​	​	​	​
Other non-operating income/(expense)—net		$	785		$	(7,164	)	$	21
​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​	​	​	​

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- Definition

Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items.

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