Long-Term Debt	3 Months Ended
Mar. 29, 2015
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt: In June of 2014, the Partnership issued $450 million of 5.375% senior unsecured notes ("June 2014 notes"), maturing in 2024, in a private placement. The net proceeds from the offering of the June 2014 notes were used to redeem in full all of the Partnership’s $405 million of 9.125% July 2010 senior unsecured notes that were scheduled to mature in 2018 (and which included $5.6 million of Original Issue Discount ("OID") to yield 9.375%), to satisfy and discharge the indenture governing the notes that were redeemed and for general corporate purposes. The Partnership's June 2014 notes pay interest semi-annually in June and December, with the principal due in full on June 1, 2024. The notes may be redeemed, in whole or in part, at any time prior to June 1, 2019 at a price equal to 100% of the principal amount of the notes redeemed plus a “make-whole” premium together with accrued and unpaid interest, if any, to the redemption date. Thereafter, the notes may be redeemed, in whole or in part, at various prices depending on the date redeemed. Prior to June 1, 2017, up to 35% of the notes may be redeemed with the net cash proceeds of certain equity offerings at a price equal to 105.375% together with accrued and unpaid interest. In March 2013, the Partnership issued $500 million of 5.25% senior unsecured notes ("March 2013 notes"), maturing in 2021, in a private placement. Concurrently with this offering, the Partnership entered into a new $885 million credit agreement (the "2013 Credit Agreement"), which included a $630 million senior secured term loan facility and a $255 million senior secured revolving credit facility. The terms of the senior secured term loan facility include a maturity date of March 6, 2020 and bear interest at a rate of LIBOR ("London InterBank Offering Rate") plus 250 bps with a LIBOR floor of 75 bps. The term loan amortizes at $6.3 million annually and allows interest to be paid on a 30-, 60-, or 90-day basis. The Partnership is currently paying interest on a 30-day basis. The net proceeds from the notes and borrowings under the 2013 Credit Agreement were used to repay in full all amounts outstanding under the previous credit facilities. The facilities provided under the 2013 Credit Agreement are collateralized by substantially all of the assets of the Partnership. Terms of the 2013 Credit Agreement include a revolving credit facility of a combined $255 million. Under the 2013 Credit Agreement, the Canadian portion of the revolving credit facility has a sub-limit of $15 million. U.S. denominated and Canadian denominated loans made under the revolving credit facility bear interest at a rate of LIBOR plus 225 bps (with no LIBOR floor). The revolving credit facility is scheduled to mature in March 2018 and also provides for the issuance of documentary and standby letters of credit. The 2013 Credit Agreement requires the Partnership to pay a commitment fee of 38 bps per annum on the unused portion of the credit facilities. The 2013 Credit Agreement requires the Partnership to maintain specified financial ratios, which if breached for any reason, including a decline in operating results, could result in an event of default under the agreement. The most restrictive of these ratios is the Consolidated Leverage Ratio which is measured quarterly on a trailing-twelve month basis. At the end of the first quarter of 2015, this ratio was set at 6.00x consolidated total debt (excluding the revolving debt)-to-consolidated EBITDA. The ratio will decrease by 0.25x each second quarter until it reaches 5.25x. Based on our trailing-twelve-month results ending March 29, 2015, we were in compliance with this ratio and all other covenants under the 2013 Credit Agreement as of March 29, 2015. The Partnership is allowed to make Restricted Payments, as defined in the 2013 Credit Agreement, of up to $60 million annually, so long as no default or event of default has occurred and is continuing and so long as the Partnership would be in compliance with certain financial ratios after giving effect to the payments. Additional Restricted Payments are allowed to be made based on an Excess-Cash-Flow formula, should the Partnership’s pro-forma Consolidated Leverage Ratio be less than or equal to 5.00x. Pursuant to the terms of the indentures governing the Partnership's June 2014 and March 2013 notes, the Partnership can make Restricted Payments of $60 million annually so long as no default or event of default has occurred and is continuing, and our ability to make additional Restricted Payments in 2015 and beyond is permitted should the Partnership's pro forma trailing-twelve-month Total-Indebtedness-to-Consolidated-Cash-Flow Ratio be less than or equal to 5.00x. The Partnership's March 2013 notes pay interest semi-annually in March and September, with the principal due in full on March 15, 2021. The notes may be redeemed, in whole or in part, at any time prior to March 15, 2016 at a price equal to 100% of the principal amount of the notes redeemed plus a “make-whole” premium together with accrued and unpaid interest, if any, to the redemption date. Thereafter, the notes may be redeemed, in whole or in part, at various prices depending on the date redeemed. Prior to March 15, 2016, up to 35% of the notes may be redeemed with the net cash proceeds of certain equity offerings at a price equal to 105.25% together with accrued and unpaid interest. As market conditions warrant, the Partnership may from time to time repurchase debt securities issued by the Partnership, in privately negotiated or open market transactions, by tender offer, exchange offer or otherwise.

Long-Term Debt:

In June of 2014, the Partnership issued $450 million of 5.375% senior unsecured notes ("June 2014 notes"), maturing in 2024, in a private placement. The net proceeds from the offering of the June 2014 notes were used to redeem in full all of the Partnership’s $405 million of 9.125% July 2010 senior unsecured notes that were scheduled to mature in 2018 (and which included $5.6 million of Original Issue Discount ("OID") to yield 9.375%), to satisfy and discharge the indenture governing the notes that were redeemed and for general corporate purposes.

The Partnership's June 2014 notes pay interest semi-annually in June and December, with the principal due in full on June 1, 2024. The notes may be redeemed, in whole or in part, at any time prior to June 1, 2019 at a price equal to 100% of the principal amount of the notes redeemed plus a “make-whole” premium together with accrued and unpaid interest, if any, to the redemption date. Thereafter, the notes may be redeemed, in whole or in part, at various prices depending on the date redeemed. Prior to June 1, 2017, up to 35% of the notes may be redeemed with the net cash proceeds of certain equity offerings at a price equal to 105.375% together with accrued and unpaid interest.

In March 2013, the Partnership issued $500 million of 5.25% senior unsecured notes ("March 2013 notes"), maturing in 2021, in a private placement. Concurrently with this offering, the Partnership entered into a new $885 million credit agreement (the "2013 Credit Agreement"), which included a $630 million senior secured term loan facility and a $255 million senior secured revolving credit facility. The terms of the senior secured term loan facility include a maturity date of March 6, 2020 and bear interest at a rate of LIBOR ("London InterBank Offering Rate") plus 250 bps with a LIBOR floor of 75 bps. The term loan amortizes at $6.3 million annually and allows interest to be paid on a 30-, 60-, or 90-day basis. The Partnership is currently paying interest on a 30-day basis. The net proceeds from the notes and borrowings under the 2013 Credit Agreement were used to repay in full all amounts outstanding under the previous credit facilities. The facilities provided under the 2013 Credit Agreement are collateralized by substantially all of the assets of the Partnership.

Terms of the 2013 Credit Agreement include a revolving credit facility of a combined $255 million. Under the 2013 Credit Agreement, the Canadian portion of the revolving credit facility has a sub-limit of $15 million. U.S. denominated and Canadian denominated loans made under the revolving credit facility bear interest at a rate of LIBOR plus 225 bps (with no LIBOR floor). The revolving credit facility is scheduled to mature in March 2018 and also provides for the issuance of documentary and standby letters of credit. The 2013 Credit Agreement requires the Partnership to pay a commitment fee of 38 bps per annum on the unused portion of the credit facilities.

The 2013 Credit Agreement requires the Partnership to maintain specified financial ratios, which if breached for any reason, including a decline in operating results, could result in an event of default under the agreement. The most restrictive of these ratios is the Consolidated Leverage Ratio which is measured quarterly on a trailing-twelve month basis. At the end of the first quarter of 2015, this ratio was set at 6.00x consolidated total debt (excluding the revolving debt)-to-consolidated EBITDA. The ratio will decrease by 0.25x each second quarter until it reaches 5.25x. Based on our trailing-twelve-month results ending March 29, 2015, we were in compliance with this ratio and all other covenants under the 2013 Credit Agreement as of March 29, 2015.

The Partnership is allowed to make Restricted Payments, as defined in the 2013 Credit Agreement, of up to $60 million annually, so long as no default or event of default has occurred and is continuing and so long as the Partnership would be in compliance with certain financial ratios after giving effect to the payments. Additional Restricted Payments are allowed to be made based on an Excess-Cash-Flow formula, should the Partnership’s pro-forma Consolidated Leverage Ratio be less than or equal to 5.00x. Pursuant to the terms of the indentures governing the Partnership's June 2014 and March 2013 notes, the Partnership can make Restricted Payments of $60 million annually so long as no default or event of default has occurred and is continuing, and our ability to make additional Restricted Payments in 2015 and beyond is permitted should the Partnership's pro forma trailing-twelve-month Total-Indebtedness-to-Consolidated-Cash-Flow Ratio be less than or equal to 5.00x.

The Partnership's March 2013 notes pay interest semi-annually in March and September, with the principal due in full on March 15, 2021. The notes may be redeemed, in whole or in part, at any time prior to March 15, 2016 at a price equal to 100% of the principal amount of the notes redeemed plus a “make-whole” premium together with accrued and unpaid interest, if any, to the redemption date. Thereafter, the notes may be redeemed, in whole or in part, at various prices depending on the date redeemed. Prior to March 15, 2016, up to 35% of the notes may be redeemed with the net cash proceeds of certain equity offerings at a price equal to 105.25% together with accrued and unpaid interest.

As market conditions warrant, the Partnership may from time to time repurchase debt securities issued by the Partnership, in privately negotiated or open market transactions, by tender offer, exchange offer or otherwise.