Note 3 - Acquisitions (Tables)

12 Months Ended

Dec. 31, 2015

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

		Aggregate Acquisitions
Current assets	$	10,649
Non-current assets		2,407
Current liabilities		(13,264	)
Long-term liabilities		(1,605	)
Redeemable non-controlling interest		(13,284	)
	$	(15,097	)
Cash consideration, net of cash acquired of $5,873		(44,108	)
Acquisition date fair value of contingent consideration		(14,566	)
Total purchase consideration	$	(58,674	)
Acquired intangible assets	$	30,398
Goodwill	$	43,373

		Aggregate Acquisitions
Current assets	$	35,003
Non-current assets		6,705
Current liabilities		(44,880	)
Long-term liabilities		(9,734	)
Redeemable non-controlling interest		(17,700	)
Non-controlling interests		(255	)
	$	(30,861	)
Note consideration	$	(3,171	)
Cash consideration, net of cash acquired of $11,427		(91,559	)
Acquisition date fair value of contingent consideration		(13,339	)
Total purchase consideration	$	(108,069	)
Acquired intangible assets	$	39,369
Goodwill	$	99,561

		Aggregate Acquisitions
Current assets	$	25,454
Non-current assets		2,591
Current liabilities		(34,611	)
Long-term liabilities		(18,147	)
Redeemable non-controlling interests		(43,533	)
Non-controlling interests		(3,629	)
	$	(71,875	)
Note consideration	$	(216	)
Cash consideration, net of cash acquired of $15,852		(31,314	)
Acquisition date fair value of contingent consideration		(8,110	)
Total purchase consideration	$	(39,640	)
Gain on revaluation of previously held equity investment	$	(820	)
Acquired intangible assets	$	46,819
Goodwill	$	65,516

Business Acquisition, Pro Forma Information [Table Text Block]

		Revenues		Net earnings from continuing operations
Actual from acquired entities for 2015	$	34,041	$	3,961
Supplemental pro forma for 2015 (unaudited)		1,802,129		44,914
Supplemental pro forma for 2014 (unaudited)		1,782,253		57,672