| **Acquisitions**                     | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
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| **Business Combinations [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| Acquisitions                         | AcquisitionsSkiinfoOn February 1, 2012, the Company acquired the capital stock of Skiinfo, AS, a Norwegian company which owns and operates several European websites focused on the ski and snowboarding industry, for total cash consideration of $5.7 million, net of cash assumed. The purchase price was allocated to identifiable tangible and intangible assets acquired and liabilities assumed based on their estimated fair values at the acquisition date. The Company completed its purchase price allocation and recorded $2.4 million in property, plant and equipment, $2.7 million in other assets, $1.8 million in goodwill, $0.7 million in indefinite-lived intangible assets, $0.5 million in other intangible assets (with a weighted-average amortization period of 6.7 years), and $2.6 million of assumed liabilities on the date of acquisition. The operating results of Skiinfo are reported within the Mountain segment.Kirkwood Mountain ResortOn April 12, 2012, the Company acquired substantially all of the assets of Kirkwood Mountain Resort (“Kirkwood”), a mountain resort located in Lake Tahoe, California, for total cash consideration of approximately $18.2 million, net of cash assumed, subject to certain working capital adjustments as provided for in the purchase agreement. The purchase price was allocated to identifiable tangible and intangible assets acquired and liabilities assumed based on their estimated fair values at the acquisition date. The Company completed its purchase price allocation and recorded $16.8 million in property, plant and equipment, $2.5 million in other assets, $0.8 million in indefinite-lived intangible assets, $1.2 million in other intangible assets (with a weighted-average amortization period of 21.5 years), and $3.1 million of assumed liabilities on the date of acquisition. The operating results of Kirkwood are reported within the Mountain segment.Urban Ski AreasIn December 2012, the Company acquired all of the assets of two ski areas in the Midwest, Afton Alps in Minnesota and Mount Brighton in Michigan, for total cash consideration of $20.0 million, net of cash assumed. The purchase price was allocated to identifiable tangible and intangible assets acquired and liabilities assumed based on their estimated fair values at the acquisition date. The Company has completed its preliminary purchase price allocation and has recorded $17.8 million in property, plant and equipment, $1.0 million in other assets, $2.0 million in goodwill, $1.0 million in other intangible assets (with a weighted-average amortization period of 10 years), and $1.8 million of assumed liabilities on the date of acquisition. The operating results of Afton Alps and Mount Brighton are reported within the Mountain segment. |

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| - Definition
The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).
+ References
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