Supplemental cash flow information (Tables)

9 Months Ended

Sep. 30, 2014

Supplemental Cash Flow Information [Abstract]

Supplemental cash flow information

	Nine months ended September 30,
	2014		2013
Cash paid for:
Interest	$	9,684	$	11,293
Income/withholding taxes (1)	10,079		27,254
Non-cash investing activities:
Accrued capital costs	$	663	$	5,734

(1) We paid withholding taxes in Iceland on intercompany dividends of $5,491 and $18,067 during the nine months ended September 30, 2014 and 2013, respectively. Our tax payments in Iceland for withholding taxes, income taxes and any associated refunds are denominated in Icelandic kronur ("ISK").