Sale of Building and Land - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	9 Months Ended	12 Months Ended
Sep. 27, 2013 Chelmsford, Massachusetts Campus	Sep. 27, 2013 Chelmsford, Massachusetts Campus	Sep. 30, 2013 Oberdiessbach, Switzerland
Real Estate Properties [Line Items]
Proceeds from sale of buildings	$ 11,275		$ 3,200
Unamortized deferred leasing costs		3,718
Gain on sale of assets	$ 1,025		$ 200

This element represents the amortization of deferred leasing fees incurred by the lessor and amortized over the term of the lease. Such fees represent (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction.

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The cash inflow from sale of buildings.

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