Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2012

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

	2012	2011	2010
Cash paid for interest, net of amounts capitalized	$     109,112	$     39,539	$     34,034
Cash paid for income taxes	$       42,261	$     22,320	$     25,435
Details of business acquisitions:
Fair value of assets	$  4,364,872	$       8,650	$   515,767
Fair value of liabilities	(695,243)	(6,902)	(228,417)
Common stock issued	(2,361,466)	-	-
Cash paid	1,308,163	1,748	287,350
Less cash acquired	(217,002)	-	(11,273)
Net cash paid for acquisitions	$  1,091,161	$       1,748	$   276,077
Details of proceeds from sale of businesses:
Book value of assets	$     198,369	$     13,791	$       4,236
Book value of liabilities	(8,626)	-	81
Receivable due from sale	-	-	(150)
Gain on sale of business	(6,649)	8,558	1,083
Proceeds from sale of businesses	$     183,094	$     22,349	$       5,250
Capital expenditures included in accounts payable
and accrued expenses	$       61,035	$     23,053	$               -
Additional consideration payable
on acquisitions	$         9,890	$               -	$               -
Non-cash financing activity:
Share settlement for employee tax liability	$                 -	$               -	$       3,093