Summary of significant accounting policies (Tables)

12 Months Ended

Dec. 30, 2017

Accounting Policies [Abstract]

Schedule of Cash, Cash Equivalents, and Restricted Cash

Cash, cash equivalents, and restricted cash within the consolidated balance sheets that are included in the consolidated statements of cash flows as of December 30, 2017 and December 31, 2016 were as follows (in thousands):

	December 30, 2017		December 31, 2016
Cash and cash equivalents	$	1,018,317	361,425
Restricted cash	94,047		69,746
Restricted cash, included in Other assets	1,735		661
Total cash, cash equivalents, and restricted cash	$	1,114,099	431,832

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

Financial assets and liabilities measured at fair value on a recurring basis as of December 30, 2017 and December 31, 2016 are summarized as follows (in thousands):

	December 30, 2017			December 31, 2016
	Significant other observable inputs (Level 2)		Total	Significant other observable inputs (Level 2)	Total
Assets:
Company-owned life insurance	$	10,836	10,836	9,271	9,271
Total assets	$	10,836	10,836	9,271	9,271
Liabilities:
Deferred compensation liabilities	$	13,543	13,543	11,126	11,126
Total liabilities	$	13,543	13,543	11,126	11,126

Schedule of Carrying Values and Fair Values of Debt

The carrying value and estimated fair value of long-term debt as of December 30, 2017 and December 31, 2016 were as follows (in thousands):

	December 30, 2017			December 31, 2016
Financial liabilities	Carrying value		Estimated fair value	Carrying value	Estimated fair value
Long-term debt	$	3,067,357	3,156,099	2,426,998	2,460,544

Property and Equipment

Estimated useful lives are as follows:

	Years
Buildings	20 – 35
Leasehold improvements	5 – 20
Store, production, and other equipment	3 – 10
Software	3 – 7

Property and equipment at December 30, 2017 and December 31, 2016 consisted of the following (in thousands):

	December 30, 2017			December 31, 2016
Land	$	35,673		34,889
Buildings	50,640			50,571
Leasehold improvements	157,310			157,752
Software, store, production, and other equipment	51,954			52,922
Construction in progress	7,270			5,203
Property and equipment, gross	302,847			301,337
Accumulated depreciation	(133,842		)	(124,675	)
Property and equipment, net	$	169,005		176,662