Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Statement of Comprehensive Income [Abstract]
Net earnings	$ 23.7us-gaap_NetIncomeLoss	$ 58.9us-gaap_NetIncomeLoss	$ 50.1us-gaap_NetIncomeLoss
Other comprehensive income, net of tax:
Foreign currency translation adjustments, net of tax expense of $0.6 million and tax benefit of $0.0 million and $0.4 million, respectively	(20.2)	(6.7)	4.9
Less: Reclassification adjustments included in net earnings	(0.9)	(0.1)	0.7
Foreign currency translation adjustments	(21.1)	(6.8)	5.6
Unrealized gains on investment, net of tax expense of $8.2 million, $16.2 million and $0.0 million, respectively	11.5	31.2	13.1
Pension liability adjustments, net of tax expense of $0.0 million, $0.2 million and $0.0 million, respectively	(0.8)	1.4	0.3
Less: Reclassification adjustments included in net earnings	0.1	0.2	0.2
Pension liability adjustments	(0.7)	1.6	0.5
Other comprehensive (loss) income	(10.3)	26.0	19.2
Comprehensive Income	$ 13.4us-gaap_ComprehensiveIncomeNetOfTax	$ 84.9us-gaap_ComprehensiveIncomeNetOfTax	$ 69.3us-gaap_ComprehensiveIncomeNetOfTax

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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