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Summary of Significant Accounting Policies- Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 Segment Unit Country Y | Dec. 31, 2011 Unit | Dec. 31, 2010 Unit
Summary Of Significant Accounting Policies [Line Items] |  |  |
Majority-owned subsidiaries that Company control | Between 20% and 50% |  |
Subsidiaries that Company accounts for under cost method | Less than 20% |  |
Remaining maturity period for highly liquid investments | Three months or less |  |
Approximate available remaining lease period for fee owned properties | 20 |  |
Multiplication Value to Cash flows for the determination of fair value of Reporting units | 7.5 | 7.5 | 6.5
Number of reporting units in U.S. | 16 |  |
Number of international reporting units | 8 |  |
Amortization period of deferred charges and other assets, minimum | 1 |  |
Amortization period of deferred charges and other assets, maximum | 10 |  |
General liability claim per occurrence | $ 250 |  |
Annual cap per policy year | 2,650 |  |
Medical claim per occurrence | 125 |  |
Insurance Reserves | 7,693 | 7,600 |
Unredeemed gift cards and other advances | 9,093 | 7,846 | 7,073
liabilities for advanced sale-type certificates | 89,175 | 82,000 |
Minimum Percentage for Tax position measure as largest amount of benefit | 50.00% |  |
Sales |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
liabilities for advanced sale-type certificates | $ 46,063 | $ 41,611 |

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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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section A -Paragraph 7 -Chapter 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6911-107765 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6935-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Liabilities -URI http://asc.fasb.org/extlink&oid=6509677 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e7018-107765 + Details
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