Business Combinations

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Business Combinations

Business Combinations

Our investments in businesses were: (a) $6,368 in 2012, including liabilities assumed of $1,868 and debt issued of $100; (b) $1,527 in 2011, including liabilities assumed of $65 and $500 debt issued; and (c) $6,952 in 2010, including liabilities assumed of $1,116 and no debt issued.

The net assets of the businesses acquired are accounted for under the acquisition method and were recorded at their fair values at the dates of acquisition. The excess of the purchase price over the estimated fair values of the net assets acquired was recorded as an increase in goodwill of approximately $1,820 in 2012 (of which $258 is deductible for tax purposes); $426 in 2011 (all of which is deductible for tax purposes); and, $1,650 in 2010 (all of which is deductible for tax purposes).

The results of operations of acquired businesses have been included in the consolidated statements of operations beginning as of the effective dates of acquisition. The effect of these acquisitions on our consolidated revenues and results of operations for the years ended December 31, 2012, 2011 or 2010 was not significant.