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SIGNIFICANT ACCOUNTING POLICIES, Earnings Per Share, Diluted (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
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3 Months Ended |
12 Months Ended |
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Dec. 29, 2013
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Sep. 29, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 30, 2012
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Sep. 23, 2012
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Jun. 24, 2012
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Mar. 25, 2012
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Dec. 29, 2013
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Dec. 30, 2012
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Dec. 25, 2011
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| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |
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| Antidilutive securities excluded from computation of earnings per share (in shares) |
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435,000 |
538,000 |
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| Numerator for diluted net earnings per share: |
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| Dividends on class A and B common stock |
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$ 0 |
$ 0 |
$ 0 |
| Net earnings |
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26,201 |
30,701 |
18,863 |
| Denominator for diluted net earnings per share: |
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| Weighted average shares outstanding (in shares) |
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50,436,000 |
50,091,000 |
51,088,000 |
| Diluted earnings per share: |
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| Net earnings (in dollars per share) |
$ 0.22 |
$ 0.09 |
$ 0.13 |
$ 0.08 |
$ 0.30 |
$ 0.14 |
$ 0.13 |
$ 0.05 |
$ 0.52 |
$ 0.61 |
$ 0.37 |
| Class C common stock equivalents (in shares) |
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0 |
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| Conversion of class C shares (in shares) |
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3,264,000 |
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Continuing Operations [Member]
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| Numerator for diluted net earnings per share: |
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| Total undistributed earnings |
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26,250 |
29,991 |
18,424 |
| Diluted earnings per share: |
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| Net earnings (in dollars per share) |
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$ 0.52 |
$ 0.60 |
$ 0.36 |
|
Discontinued Operations [Member]
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| Numerator for diluted net earnings per share: |
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| Total undistributed earnings |
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$ (49) |
$ 710 |
$ 439 |
| Diluted earnings per share: |
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| Net earnings (in dollars per share) |
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$ 0 |
$ 0.01 |
$ 0.01 |
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Class A [Member]
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| Diluted earnings per share: |
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| Ratio of class C shares convertible into Class A under option one |
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1.363970 |
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| Number of Class A shares resulting from conversion of class C shares under option one (in shares) |
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4,452,000 |
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| Ratio of class C shares convertible under option two |
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0.248243 |
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| Number of shares resulting from conversion of class C shares under option two (in shares) |
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810,000 |
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Class B [Member]
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| Diluted earnings per share: |
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| Ratio of class C shares convertible under option two |
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1.115727 |
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| Number of shares resulting from conversion of class C shares under option two (in shares) |
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3,642,000 |
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