Debt (Tables)

3 Months Ended

Mar. 26, 2017

Debt Disclosure [Abstract]

Carrying Amounts and Estimated 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 March 26, 2017 and December 25, 2016 are presented in the following table:

	As of March 26, 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	$	374.3	$	370.3	$	374.3	$	437.3	$	432.0	$	423.6