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Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Dec. 31, 2012 | Sep. 29, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Earnings Per Share Reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net income | $ 141,582 | $ 98,048 | $ 89,314 | $ 121,059 | $ 175,944 | $ 99,109 | $ 97,724 | $ 88,666 | $ 450,003 | $ 461,443 | $ 432,968
Net income per basic common share | $ 1.67 | $ 1.15 | $ 1.04 | $ 1.41 | $ 2.03 | $ 1.13 | $ 1.11 | $ 1.00 | $ 5.27 | $ 5.25 | $ 4.77
Net income per diluted common share | $ 1.65 | $ 1.14 | $ 1.03 | $ 1.39 | $ 2.00 | $ 1.12 | $ 1.09 | $ 0.98 | $ 5.20 | $ 5.19 | $ 4.69
Weighted-average number of basic common shares | 85,006,000 | 85,185,000 | 85,482,000 | 86,049,000 | 86,712,000 | 87,411,000 | 88,317,000 | 88,992,000 | 85,426,000 | 87,841,000 | 90,833,000
Effect of dilutive stock option, restricted stock and restricted stock unit securities |  |  |  |  |  |  |  |  | 1,120,000 | 1,138,000 | 1,492,000
Weighted-average number of diluted common shares and equivalents | 86,017,000 | 86,364,000 | 86,576,000 | 87,215,000 | 87,851,000 | 88,451,000 | 89,381,000 | 90,269,000 | 86,546,000 | 88,979,000 | 92,325,000
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |  |  |  |  |  |  |  |  |
Antidilutive securities excluded from computation of earnings per share |  |  |  |  |  |  |  |  | 1,100,000 | 2,000,000 | 1,300,000

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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 + Details
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- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.19) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.23) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 + Details
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