Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 25, 2015	Dec. 26, 2014	Dec. 27, 2013
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of the year	$ 5,902	$ 7,603	$ 5,710
Write-offs	(8,833)	(9,922)	(11,352)
Charged to expense	7,132	11,815	12,063
Balance, end of year	7,603	5,710	4,999
Allowance for Receivable from Insurance Provider [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of the year	3,874	3,933	5,652
Charged to expense	(59)	(1,719)	13
Balance, end of year	3,933	5,652	5,639
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of the year	3,227	2,844	844
Charged to expense	383	(68)	286
Seaton acquisition	0	2,068	0
Balance, end of year	$ 2,844	$ 844	$ 558

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 09
-Article 12

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- Definition

Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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