Acquisitions (Tables)

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Schedule of Business Acquisitions

The following table presents, in the aggregate, the preliminary estimated fair value of the assets acquired and liabilities assumed recognized as of the acquisition date. Adjustments relate to revised estimates pending completion of our valuation. The allocation of purchase price to assets and liabilities acquired is not yet complete as we are working to finalize the valuation of specific fixed assets and liabilities.

	Preliminary Fair Value Estimated as of Acquisition Date		Differences Between Prior and Current Period Preliminary Fair Value Estimate			Preliminary Fair Value Currently Estimated as of Acquisition Date
Assets acquired:
Current assets	$	90,608	$	147		$	90,755
Property and equipment	34,048		(1,234		)	32,814
Goodwill	150,492		773			151,265
Intangible assets	77,623		—			77,623
Total assets	352,771		(314		)	352,457
Liabilities assumed:
Current liabilities	64,736		(314		)	64,422
Noncurrent liabilities	26,426		—			26,426
Total liabilities	91,162		(314		)	90,848
Fair value of net assets acquired, net of cash	$	261,609	$	—		$	261,609