Guarantees - Details of Letters of Credit Outstanding (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 29, 2014
Guarantor Obligations [Line Items]
Guarantee Amount	$ 2,630
Warranty Bonds
Guarantor Obligations [Line Items]
Guarantee Amount	1,036
Guarantee due date	Various from July 2014 to July 2016
Bank Guarantees
Guarantor Obligations [Line Items]
Guarantee Amount	1,218
Guarantee due date	Various from July 2014 to January 2016
Performance Bonds
Guarantor Obligations [Line Items]
Guarantee Amount	$ 376
Guarantee due date	Various from July 2014 to December 2017