Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2014

Other Comprehensive Income (Loss) [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following is a summary of the changes in Accumulated Other Comprehensive Loss during the period January 1, 2012 to December 31, 2014 (in thousands of dollars):

	Foreign Currency Items			Defined Benefit Pension Items			Total
Balance at January 1, 2012	$	(34,012	)	$	(19,906	)	$	(53,918	)
Foreign currency translation adjustments	17,928			(1,163		)	16,765
Net unrecognized losses related to defined benefit pension plan (see Note 17)	—			(13,222		)	(13,222		)
Amounts reclassified from accumulated other comprehensive loss	—			—			—
Net other comprehensive income (loss)	17,928			(14,385		)	3,543
Balance at December 31, 2012	(16,084		)	(34,291		)	(50,375		)
Foreign currency translation adjustments	14,732			(858		)	13,874
Net unrecognized losses related to defined benefit pension plan (see Note 17)	—			(4,065		)	(4,065		)
Amounts reclassified from accumulated other comprehensive loss	—			1,113			1,113
Net other comprehensive income (loss)	14,732			(3,810		)	10,922
Balance at December 31, 2013	(1,352		)	(38,101		)	(39,453		)
Foreign currency translation adjustments	(33,929		)	2,468			(31,461		)
Net unrecognized losses related to defined benefit pension plan (see Note 17)	—			(9,787		)	(9,787		)
Amounts reclassified from accumulated other comprehensive loss	2,058			1,877			3,935
Net other comprehensive loss	(31,871		)	(5,442		)	(37,313		)
Balance at December 31, 2014	$	(33,223	)	$	(43,543	)	$	(76,766	)