Basis of Presentation - Additional Information (Details) $ in Thousands							3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 03, 2019	Feb. 28, 2019 shares	Jan. 02, 2019	Dec. 30, 2018 USD ($)	Nov. 01, 2018 USD ($)	Oct. 29, 2015	Sep. 29, 2019 USD ($)	Sep. 30, 2018 USD ($)	Sep. 29, 2019 USD ($) Agreement shares	Sep. 30, 2018 USD ($)	Dec. 30, 2018 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Loss from discontinued operations, net							$ 66	$ 118	$ 183	$ 339
Transaction, contested proxy and other related expenses							117		768	933
Non-controlling interests				$ 7,844			1,558		$ 1,558		$ 7,844
Aggregate purchase price for repurchase of company stock outstanding					$ 15,000
Period to repurchase common stock					3 years
Stock repurchase program expiration date					Nov. 01, 2021	Oct. 29, 2018
Common stock repurchase activity | shares									0
Number of debt agreements | Agreement									2
Non-use fee on lines of credit									Additionally, the non-use fee payable quarterly on the development line of credit and revolving line of credit decreased as a result of the First Modification Agreement from 0.25% to a sliding rate based on the maximum adjusted debt to EBITDAR ratio
Debt To EBITDAR
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, interest rate non use fee percentage under previous agreement				0.25%
Development Line of Credit | Second Modification Agreement
Summary Of Significant Accounting Policies [Line Items]
Line of credit facility, expiration date	Sep. 03, 2021
Development Line of Credit | First Modification Agreement
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, expiration date			May 03, 2020
Development Line of Credit | LIBOR
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, description of variable rate basis											30-day LIBOR plus 220 basis points
Debt instrument, basis spread on variable rate									1.85%		2.20%
Mortgage Loan | Second Modification Agreement
Summary Of Significant Accounting Policies [Line Items]
Line of credit facility, expiration date	Sep. 03, 2021
Mortgage Loan | First Modification Agreement
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, expiration date			Sep. 03, 2020
Mortgage Loan | LIBOR
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, description of variable rate basis											Interest at 30-day LIBOR plus 250 basis points
Debt instrument, basis spread on variable rate									1.85%		2.50%
Minimum | Mortgage Loan | LIBOR
Summary Of Significant Accounting Policies [Line Items]
Debt instrument interest rate				3.25%							3.25%
Maximum | Mortgage Loan | LIBOR
Summary Of Significant Accounting Policies [Line Items]
Debt instrument interest rate				6.25%							6.25%
Revolving Line of Credit | Second Modification Agreement
Summary Of Significant Accounting Policies [Line Items]
Line of credit facility, expiration date	Sep. 03, 2021
Revolving Line of Credit | First Modification Agreement
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, expiration date			Sep. 03, 2019
Revolving Line of Credit | LIBOR
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, description of variable rate basis											Interest at 30-day LIBOR plus 250 basis points
Debt instrument, basis spread on variable rate									1.85%		2.50%
Revolving Line of Credit | Minimum | LIBOR
Summary Of Significant Accounting Policies [Line Items]
Debt instrument, interest rate, effective percentage				3.25%							3.25%
Allocation of Net Income
Summary Of Significant Accounting Policies [Line Items]
Non-controlling interests							0	0	$ 0	0
Black Knight Advisory Services, LLC | Common Class B Units
Summary Of Significant Accounting Policies [Line Items]
Number of share forfeited and cancelled | shares		1,500,024
Ninety Nine Restaurant & Pub
Summary Of Significant Accounting Policies [Line Items]
Transaction, contested proxy and other related expenses								0		933
Discontinued Operations
Summary Of Significant Accounting Policies [Line Items]
Loss from discontinued operations, net							$ 66	$ 118	$ 183	$ 339