Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
Revenue (Details) - USD ($) $ in Thousands	Dec. 25, 2018	Sep. 25, 2018	Jun. 26, 2018	Mar. 27, 2018	Dec. 26, 2017	Sep. 26, 2017	Jun. 27, 2017	Mar. 28, 2017	Dec. 25, 2018	Dec. 26, 2017	Dec. 27, 2016
Revenue
Total revenue	$ 605,912	$ 594,595	$ 629,237	$ 627,705	$ 545,076	$ 540,507	$ 566,262	$ 567,686	$ 2,457,449	$ 2,219,531	$ 1,990,714
Restaurant and other sales
Revenue
Total revenue									2,437,115	2,203,017	1,974,261
Franchise royalties
Revenue
Total revenue									17,443	16,195	16,135
Franchise fees
Revenue
Total revenue									$ 2,891	$ 319	$ 318