Long-term debt (Tables)

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Summary Long-term debt

The long-term debt of the Company is summarized below:

In thousands of dollars	Jun. 30, 2013		Dec. 30, 2012
Borrowings under revolving credit agreements expiring September 2014	$	126,000	$	205,000
Unsecured notes bearing fixed rate interest at 8.75% due November 2014	248,782		248,376
Unsecured notes bearing fixed rate interest at 10% due June 2015	62,216		61,286
Unsecured notes bearing fixed rate interest at 6.375% due September 2015	248,756		248,497
Unsecured notes bearing fixed rate interest at 10% due April 2016	176,641		174,241
Unsecured notes bearing fixed rate interest at 9.375% due November 2017 (a)	247,749		247,547
Unsecured notes bearing fixed rate interest at 7.125% due September 2018	247,357		247,153
Total long-term debt	$	1,357,501	$	1,432,100
(a) Callable commencing on November 15, 2013 at 104.688% of the principal amount.