Leases - Maturity of Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 26, 2020	Dec. 28, 2019
Operating Leases
2020	$ 9,313
2021	82,019
2022	74,613
2023	66,867
2024	57,690
Thereafter	151,914
Total lease liabilities	442,416
Less: Interest	65,225
Present value of lease liabilities	377,191
Finance Leases
2020	1,358
2021	7,280
2022	7,215
2023	6,241
2024	4,673
Thereafter	16,459
Total lease liabilities	43,226
Less: Interest	11,616
Finance lease obligations	31,610	$ 33,296
Operating lease payments related to reasonably certain option extensions included in total lease payments	63,000
Finance lease payments related to reasonably certain option extensions included in total lease payments	1,700
Minimum lease payments for leases signed but not yet commenced excluded from lease liability	$ 29,200

Finance Lease, Liability, Payments, Due After Year Four

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Minimum Lease Payments For Leases Signed But Not Yet Commenced Excluded From Lease Liability

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Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payment for operating lease.

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