Summary of Significant Accounting Policies (Tables)

3 Months Ended

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.