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Restructuring and Divestiture Net Charges - Additional Information (Detail) (USD $) | 3 Months Ended | 6 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended
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Mar. 30, 2013 | Mar. 24, 2012 | Mar. 30, 2013 | Mar. 24, 2012 | Dec. 29, 2012 Indiana [Member ] | Sep. 29, 2012 Indiana [Member ] | Mar. 24, 2012 Abandonment of Adiana Product Line [Member] | Sep. 29, 2012 Abandonment of Adiana Product Line [Member] | Mar. 30, 2013 Consolidation of Diagnostics Operations [Member] | Sep. 29, 2012 Consolidation of Diagnostics Operations [Member] | Sep. 29, 2012 Consolidation of Diagnostics Operations [Member] | Mar. 30, 2013 Consolidation of Diagnostics Operations [Member] Restructuring [Member] | Dec. 29, 2012 Consolidation of Diagnostics Operations [Member] Restructuring [Member] | Mar. 30, 2013 Consolidation of Diagnostics Operations [Member] Restructuring [Member] | Sep. 29, 2012 Closure of Indianapolis Facility [Member] | Mar. 30, 2013 Closure of Indianapolis Facility [Member] Restructuring [Member] | Mar. 30, 2013 Closure of Indianapolis Facility [Member] Restructuring [Member] | Mar. 30, 2013 Consolidation of Selenium Panel Coating Production [Member] | Mar. 30, 2013 Consolidation of Selenium Panel Coating Production [Member]
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Divestiture charges |  |  |  |  |  |  | $ 18,300,000 | $ 19,500,000 |  |  |  |  |  |  |  |  |  |  |
Restructuring charges - cost of product sales |  |  |  |  |  |  |  | 19,100,000 |  |  |  |  |  |  |  |  |  |  |
Other restructuring charges |  |  |  |  |  |  |  | 400,000 |  |  |  |  |  |  |  |  |  |  |
Impairment charges related to inventory |  |  |  |  |  |  |  | 9,900,000 |  |  |  |  |  |  |  |  |  |  |
Impairment charges related to manufacturing equipment |  |  |  |  |  |  |  | 6,500,000 |  |  |  |  |  |  |  |  |  |  |
Charges related to outstanding contractual obligations |  |  |  |  |  |  |  | 2,700,000 |  |  |  |  |  |  |  |  |  |  |
Severance Charges |  |  |  |  |  |  |  | 100,000 |  | 13,300,000 | 900,000 |  | 800,000 |  | 900,000 | 1,500,000 | 3,000,000 | 600,000 |
Restructuring charges not recorded in cost of product sales |  |  |  |  |  |  |  | 300,000 |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense | 19,013,000 | 8,949,000 | 31,079,000 | 17,606,000 |  |  |  |  |  |  | 3,500,000 |  | 200,000 |  |  |  |  |  |
Employee retention program, payments in cash | 9,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated aggregate severance charges |  |  |  |  |  |  |  |  | 6,100,000 |  |  |  |  |  | 6,100,000 |  |  |  |
Exiting charges |  |  |  |  | 700,000 | 900,000 |  |  |  |  | 600,000 | 1,000,000 |  | 2,000,000 |  |  |  |  |
Estimated severance charges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000
Lease obligation charge and write-off of related leaseholds | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on the sale of LIFECODES business | $ 900,000 |  | $ 900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 8-13, 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5-8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 112 -Paragraph 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140864-122747 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS146-1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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