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Earnings per Share (EPS) and Common Stock (Earnings per Share Basic and Diluted) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Jan. 03, 2015
Dec. 28, 2013
Earnings Per Share and Common Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   400,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Net income $ 30,284us-gaap_NetIncomeLoss $ 39,657us-gaap_NetIncomeLoss
Weighted average shares outstanding—Basic (in shares) 115,341,000us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 118,933,000us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Dilutive effect of employee stock options, restricted shares and restricted stock units (in shares) 1,686,000us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements 2,167,000us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted average shares outstanding—Diluted (in shares) 117,027,000us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 121,100,000us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Earnings per share—Basic (in USD per share) $ 0.26us-gaap_EarningsPerShareBasic $ 0.33us-gaap_EarningsPerShareBasic
Earnings per share—Diluted (in USD per share) $ 0.26us-gaap_EarningsPerShareDiluted $ 0.33us-gaap_EarningsPerShareDiluted