Debt (Schedule Of Long-Term Debt) (Details) (USD $)	Mar. 29, 2015	Dec. 28, 2014
Debt Instrument [Line Items]
Full-recourse factoring liabilities	$ 51,000ckp_FullRecourseFactoringLiabilities	$ 83,000ckp_FullRecourseFactoringLiabilities
Bank overdraft credit facility	95,000us-gaap_BankOverdrafts	65,000us-gaap_BankOverdrafts
Other capital leases with maturities through 2020	216,000	249,000
Total	65,362,000us-gaap_LongTermDebt	65,397,000us-gaap_LongTermDebt
Less current portion	224,000us-gaap_LongTermDebtCurrent	236,000us-gaap_LongTermDebtCurrent
Total long-term portion	65,138,000us-gaap_LongTermDebtNoncurrent	65,161,000us-gaap_LongTermDebtNoncurrent
Face value	200,000,000us-gaap_DebtInstrumentFaceAmount	200,000,000us-gaap_DebtInstrumentFaceAmount
2013 $200 Million Variable Interest Rate Revolving Facility Maturing in 2018 \| Senior Secured Credit Facility
Debt Instrument [Line Items]
$200 million variable interest rate revolving credit facility maturing in 2018	$ 65,000,000	$ 65,000,000

Full-recourse factoring liabilities

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- Definition

Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing.

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-Glossary Current Liabilities

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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Face (par) amount of debt instrument at time of issuance.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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