Acquisitions (Tables)

3 Months Ended

Mar. 31, 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.

	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	$	98		$	90,706
Property and equipment	34,048		(448		)	33,600
Goodwill	150,492		79			150,571
Intangible assets	77,623		—			77,623
Total assets	352,771		(271		)	352,500
Liabilities assumed:
Current liabilities	64,736		(271		)	64,465
Noncurrent liabilities	26,426		—			26,426
Total liabilities	91,162		(271		)	90,891
Fair value of net assets acquired, net of cash	$	261,609	$	—		$	261,609