Fair Value Measurement (Details) - USD ($) $ in Thousands	Jun. 25, 2021	Dec. 25, 2020
Reported Value Measurement
Assets
Notes receivable, net	$ 5,309	$ 5,115
Reported Value Measurement \| Initial Term Loan
Liabilities
Debt instrument	285,046	286,508
Reported Value Measurement \| Incremental Term Loan
Liabilities
Debt instrument	384,150	386,100
Estimate of Fair Value Measurement
Assets
Notes receivable, net	5,375	5,494
Estimate of Fair Value Measurement \| Initial Term Loan
Liabilities
Debt instrument	270,081	267,169
Estimate of Fair Value Measurement \| Incremental Term Loan
Liabilities
Debt instrument	$ 382,229	$ 384,652

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1D
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611

Name:	us-gaap_DebtInstrumentFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant