Basis of Presentation (Detail) |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Oct. 08, 2015 |
Oct. 03, 2015
USD ($)
|
Sep. 27, 2014
USD ($)
|
Oct. 03, 2015
USD ($)
|
Sep. 27, 2014
USD ($)
|
Jan. 14, 2015 |
|
| Business Acquisition | ||||||
| Research and development, design and related engineering | $ 22,500,000 | $ 19,100,000 | $ 66,100,000 | $ 57,100,000 | ||
| Derivative instruments outstanding | $ 0 | $ 0 | ||||
| Armstrong Aerospace, Inc. | ||||||
| Business Acquisition | ||||||
| Date of acquisition | Jan. 14, 2015 | |||||
| Percentage of acquired stock | 100.00% | |||||
| Convertible Class B Stock | Subsequent Event | ||||||
| Business Acquisition | ||||||
| Stock distribution | 0.15 | |||||
| Date of payment of dividend to shareholders | Oct. 08, 2015 | |||||
| X | ||||||||||
- Definition Common Stock, Conversion Ratio No definition available.
|
| X | ||||||||||
- Definition Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format. No definition available.
|
| X | ||||||||||
- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|