Schedule II - Valuation and Qualifying Accounts (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Movement in Valuation Allowances and Reserves
Balance at Beginning of Year	$ 15,387	$ 16,325	$ 16,413
Charged to costs and expenses		1,363	2,440
Recovered from costs and expenses	(2,955)
Deductions	(2,554)	(2,301)	(2,528)
Balance at End of Year	9,878	15,387	16,325
Reserve for uncollectible accounts receivable
Movement in Valuation Allowances and Reserves
Balance at Beginning of Year	4,318	3,057	3,034
Charged to costs and expenses	2,297	2,416	1,394
Deductions	(2,801)	(1,155)	(1,371)
Balance at End of Year	3,814	4,318	3,057
Reserve for franchisee notes receivable
Movement in Valuation Allowances and Reserves
Balance at Beginning of Year	3,387	5,028	5,905
Charged to costs and expenses			280
Recovered from costs and expenses	(502)	(495)
Additions	247
Deductions		(1,146)	(1,157)
Balance at End of Year	3,132	3,387	5,028
Valuation allowance on foreign net operating losses
Movement in Valuation Allowances and Reserves
Balance at Beginning of Year	7,682	8,240	7,474
Charged to costs and expenses			766
Recovered from costs and expenses	(4,750)	(558)
Balance at End of Year	$ 2,932	$ 7,682	$ 8,240