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Acquisitions - Allocation of Acquired Intangible Assets and Related Estimates of Useful Lives (Detail) - USD ($) $ in Thousands |  |  |  | 3 Months Ended | 12 Months Ended
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May. 30, 2015 | Mar. 17, 2015 | May. 30, 2014 | Mar. 31, 2015 | Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  |  |  | $ 5,110 |
Precisive, LLC [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  | $ 5,110 |  |  |
Granville-Phillips [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  |  | $ 38,850 |  | $ 38,850
Order Backlog [Member] | Precisive, LLC [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  | $ 50 |  |  |
Estimated useful life of finite-lived intangible assets |  | 18 months |  |  |
Customer Relationships [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  |  |  | $ 1,430 |
Customer Relationships [Member] | Precisive, LLC [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  | $ 1,430 |  |  |
Estimated useful life of finite-lived intangible assets |  | 8 years |  |  |
Customer Relationships [Member] | Granville-Phillips [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  |  | 21,250 |  | $ 21,250
Estimated useful life of finite-lived intangible assets | 7 years |  |  |  |
Exclusive Patent License [Member] | Precisive, LLC [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  | $ 2,600 |  |  |
Estimated useful life of finite-lived intangible assets |  | 10 years |  |  |
Trade names [Member] | Precisive, LLC [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  | $ 210 |  |  |
Estimated useful life of finite-lived intangible assets |  | 10 years |  |  |
Current Developed Technology [Member] | Precisive, LLC [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  | $ 820 |  |  |
Estimated useful life of finite-lived intangible assets |  | 10 years |  |  |
Current Developed Technology [Member] | Granville-Phillips [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  |  | 15,700 |  |
Current Developed Technology [Member] | Granville-Phillips [Member] | Minimum [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Estimated useful life of finite-lived intangible assets | 9 years |  |  |  |
Current Developed Technology [Member] | Granville-Phillips [Member] | Maximum [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Estimated useful life of finite-lived intangible assets | 12 years |  |  |  |
Trademarks and Trade Names [Member] | Granville-Phillips [Member] |  |  |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquired intangible assets, purchase price |  |  | $ 1,900 |  |
Estimated useful life of finite-lived intangible assets | 12 years |  |  |  |

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