SUPPLEMENTAL CASH FLOW & OTHER DATA

3 Months Ended

Mar. 31, 2013

Supplemental Cash Flow Elements [Abstract]

SUPPLEMENTAL CASH FLOW & OTHER DATA

SUPPLEMENTAL CASH FLOW & OTHER DATA

Supplemental cash flow data for the three months ended March 31, 2013 and 2012 is as follows:

	Three Months Ended March 31,
	2013			2012
Depreciation expense	$	50,858		$	51,943
Amortization expense	19,360			20,231
Interest paid	51,791			49,782
Income taxes paid	83,957			10,253
Assets acquired under capital leases	416			1,192
Businesses acquired:
Fair value of assets acquired	151,543			50,800
Fair value of liabilities assumed	10,808			269
Fair value of net assets acquired	140,735			50,531
Merger consideration paid (payable)	(50,342		)	25
Cash paid for business acquisitions	90,393			50,556
Less: Cash acquired	—			—
Business acquisitions, net of cash acquired	$	90,393		$	50,556

Supplemental continuing operations data for the statement of operations for the three months ended March 31, 2013 and 2012 is as follows:

	Three Months Ended March 31,
	2013			2012
Depreciation expense	$	50,634		$	51,236
Interest expense	(40,486		)	(42,761		)
Interest income	621			659
Interest expense, net	(39,865		)	(42,102		)