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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2015
Accounting Policies [Abstract] |
Summarized Unaudited Financial Information | Summarized unaudited financial data as of March 31, 2015 and December 31, 2014 and for the three months ended March 31, 2015 and 2014 for the Company's equity method investments are as follows:
| March 31, 2015 |  | December 31, 2014
Current assets | $ | 147,728 |  |  | $ | 63,627 |
Non-current assets | 1,213 |  |  | 1,259 |
Total assets | 148,941 |  |  | 64,886 |
Current liabilities | 14,763 |  |  | 15,346 |
Non-current liabilities | 553 |  |  | 570 |
Total liabilities | 15,316 |  |  | 15,916 |
Net assets | $ | 133,625 |  |  | $ | 48,970 |
| Three Months Ended March 31,
| 2015 |  | 2014
Revenues | $ | 636 |  |  | $ | 415 |
Operating expenses | 84,069 |  |  | 12,920 |
Loss from operations | (83,433 | ) |  | (12,505 | )
Other | (1 | ) |  | 81 |
Net loss | $ | (83,434 | ) |  | $ | (12,424 | )
Allowance for Doubtful Accounts | The following table shows the activity in the allowance for doubtful accounts for the three months ended March 31, 2015:
| Three Months Ended March 31, 2015
Beginning balance | $ | 565 |
Charged to operating expenses | 393 |
Write offs of accounts receivable | (87 | )
Ending balance | $ | 871 |
Estimated Useful Lives | The estimated useful lives of these assets are as follows:
|  | Years
Land improvements |  | 4–15
Buildings and building improvements |  | 3–23
Furniture and fixtures |  | 1–7
Equipment |  | 1–10
Computer hardware and software |  | 1–7
Leasehold improvements are amortized over the shorter of the useful life of the asset or the applicable lease term, generally one to fourteen years.

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition Tabular disclosure of estimated useful lives of property plant and equipment used in the normal conduct of business. + References No definition available. + Details
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