Reportable Segment Information Schedule Of Financial Information For Company's Franchising Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues	$ 210,413	$ 192,321	$ 513,203	$ 472,903
Operating income (loss)	65,253	62,400	147,908	133,201
Income (loss) before income taxes	55,668	56,966	133,840	121,003
Franchising [Member]
Number of Reportable Segments	1	1	1	1
Revenues	209,175	191,085	509,763	469,730
Operating income (loss)	76,290	71,628	184,096	165,065
Income (loss) before income taxes	76,461	71,589	184,084	163,560
Corporate And Other [Member]
Revenues	1,238	1,236	3,440	3,173
Operating income (loss)	(11,037)	(9,228)	(36,188)	(31,864)
Income (loss) before income taxes	$ (20,793)	$ (14,623)	$ (50,244)	$ (42,557)

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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- Definition

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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