Fair value measurement (Tables)

6 Months Ended

Jun. 30, 2013

Compensation Related Costs [Abstract]

Financial Instruments Measured at Fair Value

The following table summarizes the Company’s assets and liabilities measured at fair value in the accompanying condensed consolidated balance sheet as of June 30, 2013 and December 30, 2012:

In thousands of dollars	Fair Value Measurements as of Jun. 30, 2013
	Level 1		Level 2		Level 3		Total
Employee compensation related investments	$	26,225	$	—	$	—	$	26,225
Sundry investments	30,873		—		—		30,873
Total assets	$	57,098	$	—	$	—	$	57,098
Contingent consideration payable	$	—	$	—	$	35,893	$	35,893
Total liabilities	$	—	$	—	$	35,893	$	35,893

In thousands of dollars	Fair Value Measurements as of Dec. 30, 2012
	Level 1		Level 2		Level 3		Total
Employee compensation related investments	$	23,043	$	—	$	—	$	23,043
Sundry investments	29,090		—		—		29,090
Total assets	$	52,133	$	—	$	—	$	52,133
Contingent consideration payable	$	—	$	—	$	26,170	$	26,170
Total liabilities	$	—	$	—	$	26,170	$	26,170