Note 14 - Condensed Consolidating Financial Information of Guarantor Subsidiaries (Detail) - Condensed Consolidating Balance Sheet (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012		Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 7,709		$ 8,627		$ 8,466	$ 8,416
Accounts receivable, net	147,795		144,676
Other receivables			21
Prepaid expenses	5,758		5,336
Deferred tax assets	18		16
Other current assets	1,141		1,213
Total current assets	162,421		159,889
Property, equipment and leasehold improvements, net	10,132		10,333
Goodwill	366,858		370,143			300,260
Intangible assets, net	136,223		152,896
Long-term accounts receivable, less current portion	31,870		31,708
Deferred tax assets, noncurrent	12,703		4,173
Deferred financing costs, net	9,713		10,258
Other assets	1,690		1,101
Total assets	731,610		740,501
Current liabilities:
Accounts payable	46,202		46,940
Accrued expenses	36,670		35,995
Accrued interest expense	4,928		10,918
Deferred revenue	4,374		3,951
Current portion of subordinated unsecured notes payable	279		275
Current portion of contingent earnout obligation	92		91
Current portion of working capital facilities	6,440		5,983
Other current liabilities	5,727		5,973
Total current liabilities	104,712		110,126
Senior unsecured notes payable	250,000		250,000
Senior revolving credit facility and working capital facilities	125,307		128,402
Long-term contingent earnout obligation, less current portion	305		300
Other long-term liabilities	7,342		7,525
Total liabilities	487,666		496,353
Stockholders’ equity (deficit) (1)	243,944	[1]	244,148	[1]
Total liabilities and stockholders' equity (deficit)	731,610		740,501
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	2,208		4,125
Accounts receivable, net	45,810		43,939
Other receivables			17
Prepaid expenses	2,516		2,723
Deferred tax assets	22		37
Total current assets	50,556		50,841
Property, equipment and leasehold improvements, net	8,037		8,339
Goodwill	248,900		258,890
Intangible assets, net	54,987		62,420
Deferred tax assets, noncurrent	8,003		61
Other assets	492		495
Total assets	370,975		381,046
Current liabilities:
Accounts payable	13,584		14,756
Accrued expenses	7,809		8,067
Deferred revenue	94		103
Current portion of subordinated unsecured notes payable	279		275
Current portion of contingent earnout obligation	92		91
Other current liabilities	1,809		2,226
Total current liabilities	23,667		25,518
Long-term contingent earnout obligation, less current portion	305		300
Other long-term liabilities	1,459		1,493
Total liabilities	25,431		27,311
Stockholders’ equity (deficit) (1)	345,544	[1]	353,735	[1]
Total liabilities and stockholders' equity (deficit)	370,975		381,046
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	5,501		4,502
Accounts receivable, net	101,985		100,737
Other receivables			4
Prepaid expenses	3,242		2,613
Other current assets	1,141		1,213
Total current assets	111,869		109,069
Property, equipment and leasehold improvements, net	2,095		1,994
Goodwill	117,958		111,253
Intangible assets, net	81,236		90,476
Long-term accounts receivable, less current portion	31,870		31,708
Deferred tax assets, noncurrent	4,700		4,112
Other assets	1,198		606
Total assets	350,926		349,218
Current liabilities:
Accounts payable	32,618		32,184
Accrued expenses	28,861		27,928
Deferred revenue	4,280		3,848
Deferred tax liability	4
Deferred tax liability			21
Current portion of working capital facilities	6,440		5,983
Other current liabilities	3,918		3,747
Total current liabilities	76,121		73,711
Senior revolving credit facility and working capital facilities	25,192		28,476
Other long-term liabilities	5,883		6,032
Total liabilities	107,196		108,219
Stockholders’ equity (deficit) (1)	243,730	[1]	240,999	[1]
Total liabilities and stockholders' equity (deficit)	350,926		349,218
Parent Company [Member]
Current assets:
Deferred financing costs, net	9,713		10,258
Total assets	9,713		10,258
Current liabilities:
Accrued interest expense	4,928		10,918
Total current liabilities	4,928		10,918
Senior unsecured notes payable	250,000		250,000
Senior revolving credit facility and working capital facilities	100,115		99,926
Total liabilities	355,043		360,844
Stockholders’ equity (deficit) (1)	(345,330)	[1]	(350,586)	[1]
Total liabilities and stockholders' equity (deficit)	9,713		10,258
Consolidation, Eliminations [Member]
Current assets:
Deferred tax assets	(4)		(21)
Total current assets	(4)		(21)
Total assets	(4)		(21)
Current liabilities:
Deferred tax liability	(4)
Deferred tax liability			(21)
Total current liabilities	(4)		(21)
Total liabilities	(4)		(21)
Stockholders’ equity (deficit) (1)		[1]		[1]
Total liabilities and stockholders' equity (deficit)	$ (4)		$ (21)

[1] Includes intercompany investments in subsidiaries.