Dollar Tree, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

DERIVATIVE FINANCIAL INSTRUMENTS (Details)

v2.4.0.6

DERIVATIVE FINANCIAL INSTRUMENTS (Details) (USD $) In Millions, unless otherwise specified	Jan. 28, 2012 gal	Jan. 29, 2011 gal
Interest Rate Swaps [Member]
Derivative [Line Items]
Inception Date	2008
Number of interest rate swap agreements	2
Notional Amount	$ 75.0
Fixed Interest Rate	2.80%
Interest Rate Swap Expiration Date	March 2011
Fuel Derivative Contracts [Member]
Derivative [Line Items]
Derivative Fair value	$ 0.6
Diesel fuel derivative contracts (in gallons)	3,500,000.0	5,000,000.0
Fuel Needs Percentage From February 2012 to July 2012 Hedged by the Fuel Derivative Contracts (in hundredths)	41.00%
Fuel Needs Percentage from August 2012 through October 2012 Hedged by the Fuel Derivative Contracts (in hundredths)	16.00%
Diesel fuel need in derivative contracts (in hundredths)	31.00%	39.00%
Gallons of Diesel Fuel in the Fuel Derivative Contract for estimated fuel needs February 2012 through July 2012 (in gallons)	2,800,000.0
Gallons of diesel fuel in the fuel derivative contracts, for estimated fuel needs August 2012 through October 2012 (in gallons)	500,000.0

- Definition

The date the entity entered into the derivative.

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- Definition

Aggregate notional amount of price risk derivatives not designated as a hedging instrument with notional amounts expressed in nonmonetary units. For example the number of barrels specified in a fuel oil forward purchase contract.

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- Definition

Percentage of an entity's estimated fuel needs hedged in a fuel derivative contract.

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Percentage of an entity's estimated future (period 2) fuel needs hedged in a fuel derivative contract.

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- Definition

Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

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-Name Accounting Standards Codification

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- Definition

Fixed interest rate related to the interest rate derivative.

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- Definition

The percentage of expected requirements covered by the aggregate notional amount of derivative contracts expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract as a percentage of expected need.

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in fair value hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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Number of interest rate derivative instruments held by the entity at the reporting date.

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