Accrued Expenses - Components of Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Accrued Liabilities, Current [Abstract]
Interest	$ 32,475us-gaap_InterestPayableCurrent	$ 17,294us-gaap_InterestPayableCurrent
Payroll and benefits	20,326us-gaap_AccruedEmployeeBenefitsCurrent	16,368us-gaap_AccruedEmployeeBenefitsCurrent
Capital lease obligations	17,530us-gaap_CapitalLeaseObligationsCurrent	2,068us-gaap_CapitalLeaseObligationsCurrent
Insurance	11,402us-gaap_AccruedInsuranceCurrent	7,445us-gaap_AccruedInsuranceCurrent
Non-income taxes	5,520	4,168
Professional fees	3,299us-gaap_AccruedProfessionalFeesCurrent	2,352us-gaap_AccruedProfessionalFeesCurrent
Other	10,944us-gaap_OtherAccruedLiabilitiesCurrent	7,556us-gaap_OtherAccruedLiabilitiesCurrent
Total	$ 101,496us-gaap_AccruedLiabilitiesCurrent	$ 57,251us-gaap_AccruedLiabilitiesCurrent

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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