Debt (Tables)

9 Months Ended

Oct. 01, 2017

Debt Disclosure [Abstract]

Fair Value of Long-Term Debt

Carrying amounts and the related estimated fair values of the Company’s long-term debt financial instruments not measured at fair value on a recurring basis at October 1, 2017 and December 25, 2016 are presented in the following table:

	As of October 1, 2017						As of December 25, 2016
$ in millions	Principal		Carrying Amount		Fair Value		Principal		Carrying Amount		Fair Value
Total long-term debt including current portion	$	373.8	$	370.7	$	383.1	$	437.3	$	432.0	$	423.6