Bank Loans (Details) (Spanish Companies)	6 Months Ended
Jun. 28, 2014
Bank Loans
Average weighted interest rate (as a percent)	3.20%
Minimum [Member]
Bank Loans
Maturity period	1 year
Maximum [Member]
Bank Loans
Maturity period	4 years

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration