Acquisitions (Tables)

6 Months Ended

Jun. 30, 2015

Business Combinations [Abstract]

Aggregate Purchase Cost Allocations

The following table summarizes the assets acquired and liabilities assumed in these transactions and recognized at their acquisition dates at estimated fair values:

	Six months ended
	June 30, 2015
Current assets	$	1,545
Property and equipment		9,740
Amortizable intangible and other long-term assets		2,444
Goodwill		51,075
Long-term deferred income taxes		(750	)
Noncontrolling interests assumed		(18,068	)
Liabilities assumed		(533	)
Aggregate purchase price	$	45,453

Reconciliation of Changes in Contingent Earn-Out Obligations

The following is a reconciliation of changes in the contingent earn-out obligations for the six months ended June 30, 2015:

Beginning balance, January 1, 2015	$	39,129
Remeasurement of fair value for contingent earn-out obligations		(1,834	)
Payments on contingent earn-out obligations		(2,338	)
	$	34,957