Note 5 - Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

	United					United
	States		Canada			Kingdom			Australia			Total
Balance at December 31, 2013	$	273,070	$	19,279		$	39,593		$	37,370		$	369,312
Goodwill acquired during the year		127,691		—			1,629			9,241			138,561
Adjustments to prior year acquisitions		64		—			(373	)		—			(309	)
Effect of foreign currency translation		—		(1,206	)		(668	)		(1,063	)		(2,937	)
Balance at September 30, 2014	$	400,825	$	18,073		$	40,181		$	45,548		$	504,627

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

					December 31, 2013
	Estimated useful lives (months)				Gross carrying amount		Accumulated amortization			Net carrying value
Amortizable intangible assets:
Customer relationships		40	to	60	$	201,395	$	(132,153	)	$	69,242
Tradenames		45	to	84		59,813		(36,164	)		23,649
Covenants not to compete			36			4,714		(2,986	)		1,728
Technology		24	to	40		7,507		(7,262	)		245
Totals					$	273,429	$	(178,565	)	$	94,864

					September 30, 2014
	Estimated useful lives (months)				Gross carrying amount		Accumulated amortization			Net carrying value
Amortizable intangible assets:
Customer relationships		40	to	60	$	247,699	$	(160,395	)	$	87,304
Tradenames		45	to	84		71,924		(44,300	)		27,624
Covenants not to compete			36			6,487		(3,818	)		2,669
Technology		24	to	40		9,323		(7,815	)		1,508
Totals					$	335,433	$	(216,328	)	$	119,105

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

	Amount
Three months ended December 31, 2014	$	13,712
Year ended December 31:
2015		47,841
2016		34,153
2017		21,086
2018		1,775
Thereafter		538
Total	$	119,105