Financial instruments (Tables)

12 Months Ended

Dec. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

The following table provides information as to the gains and losses attributable to derivatives in cash flow hedging relationships that were reported in other comprehensive income (“OCI”) for the years ended December 31, 2014, 2013 and 2012:



	After Tax Gain/(Loss) Recognized in OCI
	2014		2013		2012
	(Dollars in thousands)
Interest rate swap	$	—	$	—	$	7,032
Foreign currency exchange contracts	—		381		(156		)
Total	$	—	$	381	$	6,876

Aggregate Accounts Receivable, Net of Allowance for Doubtful Accounts

The aggregate net current and long-term accounts receivable for customers in Spain, Italy, Greece and Portugal and the percentage of the Company’s total net current and long-term accounts receivable represented by the net current and long-term accounts receivables for customers in those countries at December 31, 2014 and 2013 are as follows:



	December 31, 2014			December 31, 2013
	(Dollars in thousands)
Current and long-term accounts receivable (net of allowances of $8.1 million and $7.9 million in 2014 and 2013, respectively) in Spain, Italy, Greece and Portugal ⁽¹⁾	$	76,190		$	97,852
Percentage of total net current and long-term accounts receivables	27.3		%	31.0		%

(1) The long-term portion of accounts receivable, net from customers in Spain, Italy, Greece and Portugal at December 31, 2014 and 2013 was $11.3 million and $17.6 million, respectively, and is reported in other assets.