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Noncontrolling Interests (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Mar. 28, 2015
Mar. 29, 2014
Mar. 28, 2015
Mar. 29, 2014
Changes in the liability and temporary equity attributable to redeemable NCIs        
Balance at the beginning of the period     $ 12,440us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount  
Net income 102us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 229us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 202us-gaap_NetIncomeLossAttributableToNoncontrollingInterest 477us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Adjustment to redemption value     (7,923)us-gaap_MinorityInterestChangeInRedemptionValue  
Cash distributions     (268)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders  
Other comprehensive loss     (102)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest  
Balance at the end of the period $ 4,349us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount   $ 4,349us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount