Amount of outstanding long-term debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(c))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

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Debt Instrument, Debt Default, Number of Non-Recourse Loans in Default

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Debt Instrument, Number of Properties Secured by Each Non-Recourse Loan

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Debt - Mortgage Notes Payable Narrative (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 27, 2017 USD ($) property	Jun. 30, 2017 USD ($) property	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) loan property	Jun. 30, 2016 USD ($)	Dec. 30, 2016 USD ($) property
Debt Instrument [Line Items]
Number of properties secured by each non-recourse loan \| property	4			4
Gain on extinguishment and forgiveness of debt, net		$ 9,005	$ 252	$ 8,935	$ 252
Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Mortgage notes in connection with default from non-recourse loan	$ 38,300	$ 83,900		83,900		$ 11,600
Gain on extinguishment and forgiveness of debt, net				$ 9,000
Number of non-recourse loans in default \| loan				3
Number of non-recourse loan secured properties \| property		1		1		16