Increase for accrued, but unpaid interest on the debt instrument for the period.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Amount, after accumulated amortization, of debt premium.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Gross amount of debt extinguished.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Bank Indebtedness and Long-Term Debt (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2020	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Debt Instrument [Line Items]
Unamortized debt issuance costs			$ 5,094
Loss on the retirement of note		$ 8,915	$ 0	$ 0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 250,000
Line of Credit Facility, Interest Rate Description		Borrowings under the Facilities bear interest based on various reference rates including LIBOR plus an applicable margin. With respect to loans under the Revolving Credit Facility, the applicable margin will be set quarterly based on average borrowing availability for the preceding fiscal quarter and will range from 0.50% to 1.00% for base rate borrowings and from 1.50% to 2.00% for eurocurrency rate, bankers' acceptance rate and European base rate borrowings, with a reduction of 0.25% when the Company's total leverage ratio is less than a specific threshold on or after the one year anniversary of the closing date of the Facilities. With respect to loans under the Term Loan Facility, the applicable margin will be set quarterly based on average borrowing availability for the preceding fiscal quarter and will range from 1.25% to 1.75% for base rate borrowings and from 2.25% to 2.75% for eurocurrency rate, bankers' acceptance rate and European base rate borrowings. In addition to paying interest on outstanding principal under the Facilities, the Company is required to pay commitment fees quarterly, in arrears, equal to (i) 0.25% of the average daily undrawn portion of the Revolving Credit Facility and (ii) 0.375% of the undrawn portion of the Term Loan Facility. As at January 2, 2021, the weighted-average interest rate on all borrowings under the Revolving Credit Facility was 2.42%.
Term Loan Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	75,000
Line of Credit Facility, Covenant Terms		Subject to (i) certain adjustments to baskets and thresholds and (ii) the addition of a maximum senior funded leverage ratio covenant with respect to the Term Loan Facility, the Facilities are subject to a number of covenants that, among other things, restrict the Company's ability to create liens on assets; sell assets and enter in sale and leaseback transactions; pay dividends, prepay junior lien and unsecured indebtedness and make other restricted payments; incur additional indebtedness, including finance lease obligations in excess of $150 million, and make guarantees; make investments, loans or advances, including acquisitions; and engage in mergers or consolidations. In addition, the Company and its restricted subsidiaries are required to maintain a minimum fixed charge coverage ratio of 1.0 to 1.0 if excess availability is less than the greater of (i) $15.0 million or (ii) 10% of the lesser of (x) the aggregate commitments under the Revolving Credit Facility and (y) the aggregate borrowing base.
Facilities [Member]
Debt Instrument [Line Items]
Debt issuance costs	4,100
Unamortized debt issuance costs	1,500
Dutch Sub Facility Global Credit Facility [Member]
Debt Instrument [Line Items]
Repayment of outstanding borrowings	72,000
Global Credit Facility [Member]
Debt Instrument [Line Items]
Repayment of outstanding borrowings	$ 60,000
Senior Secured Second Lien Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	102.375%
Debt redeemed and retired, amount	$ 223,500
Accrued and unpaid interest	4,500
Loss on the retirement of note	8,900
Premium paid on on retirement of note	5,300
Write-off of unamortized debt issuance costs	$ 3,600