Note 5 - Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Goodwill [Table Text Block]

	December 31, 2011			September 30, 2012
Balance at  beginning of period	$	90,582		$	300,260
Goodwill acquired during the period		209,619			45,103
Adjustments to prior year acquisitions		1,799			3,983
Effect of foreign currency translation		(1,740	)		2,680
Balance at end of period	$	300,260		$	352,026

Schedule of Finite-Lived Intangible Assets [Table Text Block]

					December 31, 2011
	Estimated useful lives (months)				Gross carrying amount		Accumulated amortization			Net carrying carrying value
Amortizable intangible assets:
Customer relationships		40	to	60	$	157,826	$	(50,438	)	$	107,388
Tradenames		45	to	84		48,046		(13,277	)		34,769
Covenants not to compete			36			2,784		(1,587	)		1,197
Technology		24	to	40		6,750		(3,936	)		2,814
Totals					$	215,406	$	(69,238	)	$	146,168

				September 30, 2012
	Estimated useful lives (months)			Gross carrying amount		Accumulated amortization			Net carrying value
Amortizable intangible assets:
Customer relationships	40	to	60	$	198,780	$	(79,103	)	$	119,677
Tradenames	45	to	84		59,583		(21,354	)		38,229
Covenants not to compete		36			3,292		(2,148	)		1,144
Technology	24	to	40		7,262		(5,807	)		1,455
Totals				$	268,917	$	(108,412	)	$	160,505

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	Amount
Three months ended December 31,   2012	$	14,727
Year ended December 31:
2013		53,884
2014		37,678
2015		28,688
2016		16,056
Thereafter		9,472
Total	$	160,505