The percentage of ownership of Class A common stock held by shareholders.

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- Definition

Debt Instrument, Percentage of Principle Available for Redemption

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- Definition

Sale Leaseback Financing, Amortization Period

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Sale leaseback financing, renewal option to extend the lease term for additional years.

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Sale Leaseback Financing, Lease Term

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- Definition

Sale Leaseback Purchase Option Price

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- Definition

Warrants Issued In Connection With Debt Issuance

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

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- Definition

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

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-Publisher FASB

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Amount of the fee that accompanies borrowing money under the debt instrument.

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-Name Regulation S-X (SX)

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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-Publisher FASB

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Contractual interest rate for funds borrowed, under the debt agreement.

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The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

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-Glossary Financing Activities

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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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The cash inflow associated with the amount received from holders exercising their stock warrants.

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Amount of cash inflow before closing and deferred financing costs received by a seller-lessee in a sale-leaseback recognized in financing activities.

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Amount of cash inflow after closing and deferred financing costs received by a seller-lessee in a sale-leaseback recognized in financing activities.

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Debt Obligations - Debt Information (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	1 Months Ended	0 Months Ended	1 Months Ended	12 Months Ended		1 Months Ended	0 Months Ended
	Nov. 30, 2012	Sep. 26, 2012	Dec. 30, 2012	Dec. 28, 2014	Dec. 29, 2013	Mar. 31, 2009	Jan. 14, 2015	Dec. 31, 2005	Nov. 30, 2010	Jan. 31, 2009
Debt Information
Premium (charge) on debt redemption	$ (1,400,000)
Notes Due 2012 [Member]
Debt Information
Debt repaid		75,000,000
Interest rate on debt		4.61%
Notes Due 2015 [Member]
Debt Information
Debt repaid				20,400,000
Interest rate on debt				5.00%				5.00%
Debt instrument, face amount								250,000,000
Redemption of long-term debt			5,900,000
Premium (charge) on debt redemption			(400,000)	(300,000)
Percentage of principle available for debt redemption								100.00%
Notes Due 2016 [Member]
Debt Information
Interest rate on debt				6.625%					6.625%
Debt instrument, face amount									225,000,000
Redemption of long-term debt				18,400,000	17,400,000
Premium (charge) on debt redemption				(2,200,000)	(2,100,000)
Percentage of principle available for debt redemption									100.00%
Notes Due 2015 Called 2011 [Member]
Debt Information
Warrants issued In connection with debt issuance										15.9
Class of warrant or right, exercise price of warrants or rights (USD per warrant)										$ 6.3572
Option To Repurchase Headquarters Building 2019 [Member]
Debt Information
Sale leaseback transaction, sale price for the Condo Interest						225,000,000
Sale leaseback financing, lease term						15 years
Sale leaseback financing, lease renewal term						20 years
Sale leaseback purchase option price						250,000,000
Proceeds from sale-leaseback financing						210,500,000
Debt instrument, fee amount						39,000,000
Sale leaseback financing, amortization period						10 years
Debt instrument, interest rate, effective percentage						13.00%
Carlos Slim Helu [Member]
Debt Information
Class-A Common Stock ownership percentage										8.00%
Subsequent Event [Member]
Debt Information
Proceeds from warrant exercises							$ 101,100,000