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Debt (Detail) (Senior Credit Facilities, USD $) In Thousands, unless otherwise specified | Mar. 29, 2013 | Dec. 31, 2012
--- | --- | ---
Debt Instrument [Line Items] |  |
Debt long term and short term | $ 103,125 | $ 50,000
Term Loan |  |
Debt Instrument [Line Items] |  |
Debt long term and short term | 48,125 | 50,000
Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Debt long term and short term | $ 55,000 |

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. + References No definition available. + Details
Name: | us-gaap_DebtLongtermAndShorttermCombinedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant