Acquisitions and Dispositions - Assets and Liabilities Acquired (Details) - USD ($) $ in Millions | Jun. 30, 2015 | Jan. 21, 2015 | Apr. 30, 2014 | Sep. 26, 2015 | Sep. 27, 2014 | Sep. 26, 2015 | Sep. 27, 2014 | Dec. 31, 2014 |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Goodwill | [1] | | | | $ 504.3 | | $ 504.3 | | $ 474.3 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Amortization of intangible assets | | | | | $ 17.1 | $ 14.9 | $ 49 | $ 43.7 | |
Reznor | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Current assets | [2] | | | $ 46.9 | | | | | |
Property and equipment | | | | 17 | | | | | |
Goodwill | | | | 103.8 | | | | | |
Intangible assets | | | | 125 | | | | | |
Current liabilities | [3] | | | (18.8) | | | | | |
Deferred income taxes | | | | (9.7) | | | | | |
Other long-term liabilities | | | | (1.6) | | | | | |
Estimated purchase price | | | | 262.6 | | | | | |
Cash and equivalents acquired | | | | 7 | | | | | |
Accounts receivable acquired | | | | 17.5 | | | | | |
Inventory acquired | | | | 20.5 | | | | | |
Prepaid and other current assets acquired | | | | 1 | | | | | |
Current deferred taxes acquired | | | | 0.9 | | | | | |
Fair value adjustment of inventory | | | | 1.8 | | | | | |
Accounts payable acquired | | | | 12.3 | | | | | |
Accrued expenses and taxes acquired | | | | $ 6.5 | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | | 12 years 10 months 24 days | | | | | |
Reznor | Customer Relationships | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | | | $ 64.8 | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | | 11 years 1 month 6 days | | | | | |
Reznor | Completed Technology | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | | | $ 20.4 | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | | 5 years | | | | | |
Reznor | Trademarks | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | | | $ 39.7 | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | | 20 years | | | | | |
Reznor | Other | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | | | $ 0.1 | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | | 3 years 9 months 18 days | | | | | |
Anthro | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Goodwill | | | $ 25.5 | | | | | | |
Intangible assets | | | 19.6 | | | | | | |
Cash and equivalents acquired | | | 0.6 | | | | | | |
Fair value adjustment of inventory | | | $ 0.5 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | 4 years 3 months 18 days | | | | | | |
Anthro | Developed Technology | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | | $ 13.3 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | 4 years | | | | | | |
Anthro | Customer Relationships | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | | $ 2.2 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | 4 years 6 months | | | | | | |
Anthro | Trade names | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | | $ 3.9 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | 5 years | | | | | | |
Anthro | Favorable lease agreements | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | | $ 0.2 | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | | 3 years | | | | | | |
Numera, Inc. | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Goodwill | | $ 4.4 | | | | | | | |
Intangible assets | | $ 11 | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | 5 years 1 month 6 days | | | | | | | |
Numera, Inc. | Developed Technology | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | $ 5.6 | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | 4 years 9 months 18 days | | | | | | | |
Numera, Inc. | Customer Relationships | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | $ 4 | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | 5 years 9 months 18 days | | | | | | | |
Numera, Inc. | Trade names | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | $ 1.1 | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | 5 years 6 months | | | | | | | |
Numera, Inc. | Non-compete arrangements | | | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] | | | | | | | | | |
Intangible assets | | $ 0.3 | | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract] | | | | | | | | | |
Weighted Average Useful Life | | 3 years 3 months 18 days | | | | | | | |
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[1] | The CAS and combined AVC reporting units did not have goodwill for any periods presented. | |
[2] | Includes cash of approximately $7.0 million, accounts receivable of approximately $17.5 million, inventories of approximately $20.5 million, prepaid and other current assets of approximately $1.0 million, and current deferred taxes of approximately $0.9 million. Inventories include a fair value adjustment to the historical carrying value of approximately $1.8 million. | |
[3] | Includes accounts payable of approximately $12.3 million and accrued expenses and taxes of approximately $6.5 million. | |