Note 14 - Condensed Consolidating Financial Information of Guarantor Subsidiaries (Detail) - Condensed Consolidating Balance Sheet (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010	Dec. 30, 2010	Dec. 31, 2009
Current assets:
Cash and cash equivalents	$ 8,627		$ 8,416		$ 33,624	$ 33,624	$ 1,499
Accounts receivable, net	144,676		144,041
Other receivables	21		40
Prepaid expenses	5,336		4,487
Deferred tax assets	16		1,640
Other current assets	1,213		1,173
Total current assets	159,889		159,797
Property, equipment and leasehold improvements, net	10,333		8,918
Goodwill	370,143		300,260
Intangible assets, net	152,896		146,168
Long-term accounts receivable, less current portion	31,708
Deferred tax assets, noncurrent	4,173
Deferred financing costs, net	10,258		11,458
Other assets	1,101		438
Total assets	740,501		627,039
Current liabilities:
Current portion of working capital facilities	5,983
Current liabilities:
Accounts payable	46,940		42,642
Accrued expenses	35,995		28,410
Accrued interest expense	10,918		10,247
Deferred revenue	3,951		1,332
Current portion of subordinated unsecured notes payable	275		1,932
Current portion of contingent earnout obligation	91		91
Other current liabilities	5,973		5,459
Total current liabilities	110,126		90,113
Senior unsecured notes payable	250,000		250,000
Senior revolving credit facility and working capital facilities	128,402		44,063
Long-term subordinated unsecured notes payable, less current portion	300		717
Long-term contingent earnout obligation, less current portion			86
Deferred tax liability, noncurrent			2,159
Other long-term liabilities	7,525		1,977
Total liabilities	496,353		389,115
Stockholders’ equity (deficit) (1)	244,148	[1]	237,924	[1]	200,240		20,400
Total liabilities and stockholders' equity (deficit)	740,501		627,039
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	4,125		6,044
Accounts receivable, net	43,939		44,690
Other receivables	17		26
Prepaid expenses	2,723		2,694
Deferred tax assets	37		1,373
Other current assets			14
Total current assets	50,841		54,841
Property, equipment and leasehold improvements, net	8,339		7,745
Goodwill	258,890		240,252
Intangible assets, net	62,420		84,833
Deferred tax assets, noncurrent	61
Other assets	495		438
Total assets	381,046		388,109
Current liabilities:
Accounts payable	14,756		16,728
Accrued expenses	8,067		4,272
Deferred revenue	103		192
Current portion of subordinated unsecured notes payable	275		1,932
Current portion of contingent earnout obligation	91		91
Other current liabilities	2,226		2,925
Total current liabilities	25,518		26,140
Long-term subordinated unsecured notes payable, less current portion	300		717
Long-term contingent earnout obligation, less current portion			86
Deferred tax liability, noncurrent			4,072
Other long-term liabilities	1,493		1,691
Total liabilities	27,311		32,706
Stockholders’ equity (deficit) (1)	353,735	[1]	355,403	[1]
Total liabilities and stockholders' equity (deficit)	381,046		388,109
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	4,502		2,372
Accounts receivable, net	100,737		99,351
Other receivables	4		14
Prepaid expenses	2,613		1,793
Deferred tax assets			267
Other current assets	1,213		1,159
Total current assets	109,069		104,956
Property, equipment and leasehold improvements, net	1,994		1,173
Goodwill	111,253		60,008
Intangible assets, net	90,476		61,335
Long-term accounts receivable, less current portion	31,708
Deferred tax assets, noncurrent	4,112		1,913
Other assets	606
Total assets	349,218		229,385
Current liabilities:
Current portion of working capital facilities	5,983
Current liabilities:
Accounts payable	32,184		25,914
Accrued expenses	27,928		24,138
Deferred revenue	3,848		1,140
Other current liabilities	3,747		2,534
Total current liabilities	73,711		53,726
Senior revolving credit facility and working capital facilities	28,476		39,063
Deferred tax liability, noncurrent	21
Other long-term liabilities	6,032		286
Total liabilities	108,219		93,075
Stockholders’ equity (deficit) (1)	240,999	[1]	136,310	[1]
Total liabilities and stockholders' equity (deficit)	349,218		229,385
Parent Company [Member]
Current assets:
Deferred financing costs, net	10,258		11,458
Total assets	10,258		11,458
Current liabilities:
Accrued interest expense	10,918		10,247
Total current liabilities	10,918		10,247
Senior unsecured notes payable	250,000		250,000
Senior revolving credit facility and working capital facilities	99,926		5,000
Total liabilities	360,844		265,247
Stockholders’ equity (deficit) (1)	(350,586)	[1]	(253,789)	[1]
Total liabilities and stockholders' equity (deficit)	10,258		11,458
Consolidation, Eliminations [Member]
Current assets:
Deferred tax assets	(21)
Total current assets	(21)
Deferred tax assets, noncurrent			(1,913)
Total assets	(21)		(1,913)
Current liabilities:
Total current liabilities	(21)
Deferred tax liability, noncurrent	(21)		(1,913)
Total liabilities	(21)		(1,913)
Stockholders’ equity (deficit) (1)		[1]		[1]
Total liabilities and stockholders' equity (deficit)	$ (21)		$ (1,913)

[1] Includes intercompany investments in subsidiaries.