Note 14 - Condensed Consolidating Financial Information of Guarantor Subsidiaries (Details) - Condensed Consolidating Balance Sheet (USD $)	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 9,751,000		$ 12,829,000		$ 8,627,000		$ 8,416,000
Accounts receivable, net	203,189,000		169,905,000
Prepaid expenses	13,805,000		5,785,000
Deferred tax assets	3,776,000		433,000
Other current assets	1,437,000		1,298,000
Total current assets	231,958,000		190,250,000
Property, equipment and leasehold improvements, net	15,726,000		10,950,000
Goodwill	495,679,000		369,312,000		370,143,000
Intangible assets, net	102,583,000		94,864,000
Long-term accounts receivable, less current portion	46,401,000		35,952,000
Deferred tax assets, noncurrent	29,682,000		21,491,000
Deferred financing costs, net	6,169,000		8,193,000
Other assets	1,946,000		1,501,000
Total assets	930,144,000	[1],[2],[3]	732,513,000	[1],[2],[3]	740,501,000	[1],[2],[3]
Current liabilities:
Accounts payable	57,033,000		52,672,000
Accrued expenses	53,978,000		38,448,000
Accrued interest expense	10,667,000		10,431,000
Deferred revenue	6,402,000		5,795,000
Current portion of subordinated unsecured notes payable			318,000
Current portion of contingent earnout obligation	4,473,000		2,032,000
Current portion of working capital facilities	40,396,000
Other current liabilities	6,950,000		6,438,000
Total current liabilities	179,899,000		116,134,000
Senior unsecured notes payable	250,000,000		250,000,000
Senior secured revolving credit facility	143,853,000		82,970,000
Long-term contingent earnout obligation, less current portion	2,114,000		2,373,000
Other long-term liabilities	9,403,000		8,165,000
Total liabilities	585,269,000		459,642,000
Commitments and contingencies
Stockholders’ equity (deficit)	344,875,000		272,871,000		244,148,000		237,924,000
Total liabilities and stockholders' equity (deficit)	930,144,000		732,513,000
Consolidation, Eliminations [Member]
Current assets:
Intercompany receivable	(52,669,000)		(29,551,000)
Deferred tax assets	(4,000)		(4,000)
Total current assets	(52,673,000)		(29,555,000)
Investment in subsidiaries	(808,779,000)		(631,836,000)
Intercompany notes receivable	(348,928,000)		(349,652,000)
Deferred financing costs, net			(8,100,000)
Total assets	(1,210,380,000)		(1,019,143,000)
Current liabilities:
Intercompany payable	(52,669,000)		(29,551,000)
Deferred tax liability, noncurrent	(4,000)		(4,000)
Total current liabilities	(52,673,000)		(29,555,000)
Intercompany notes payable	(348,928,000)		(349,652,000)
Total liabilities	(401,601,000)		(379,207,000)
Commitments and contingencies
Stockholders’ equity (deficit)	(808,779,000)		(639,936,000)
Total liabilities and stockholders' equity (deficit)	(1,210,380,000)		(1,019,143,000)
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	388,000		760,000		4,125,000		6,044,000
Accounts receivable, net	55,684,000		46,828,000
Intercompany receivable	42,002,000		19,120,000
Prepaid expenses	8,248,000		2,889,000
Deferred tax assets	3,780,000		437,000
Other current assets	272,000		61,000
Total current assets	110,374,000		70,095,000
Property, equipment and leasehold improvements, net	10,394,000		6,760,000
Investment in subsidiaries	217,344,000		217,034,000
Intercompany notes receivable	174,464,000		174,826,000
Goodwill	387,104,000		259,316,000
Intangible assets, net	64,530,000		37,172,000
Deferred tax assets, noncurrent	22,505,000		15,470,000
Deferred financing costs, net	6,140,000		8,100,000
Other assets	663,000		497,000
Total assets	993,518,000		789,270,000
Current liabilities:
Accounts payable	20,163,000		17,524,000
Intercompany payable	10,667,000		10,431,000
Accrued expenses	23,904,000		10,839,000
Deferred revenue	244,000		100,000
Current portion of subordinated unsecured notes payable			318,000
Other current liabilities	2,363,000		2,116,000
Total current liabilities	57,341,000		41,328,000
Intercompany notes payable	174,464,000		174,826,000
Other long-term liabilities	1,795,000		1,791,000
Total liabilities	233,600,000		217,945,000
Commitments and contingencies
Stockholders’ equity (deficit)	759,918,000		571,325,000
Total liabilities and stockholders' equity (deficit)	993,518,000		789,270,000
Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	9,363,000		12,069,000		4,502,000		2,372,000
Accounts receivable, net	147,505,000		123,077,000
Prepaid expenses	5,557,000		2,896,000
Other current assets	1,165,000		1,237,000
Total current assets	163,590,000		139,279,000
Property, equipment and leasehold improvements, net	5,332,000		4,190,000
Goodwill	108,575,000		109,996,000
Intangible assets, net	38,053,000		57,692,000
Long-term accounts receivable, less current portion	46,401,000		35,952,000
Deferred tax assets, noncurrent	7,177,000		6,021,000
Deferred financing costs, net	29,000		93,000
Other assets	1,283,000		1,004,000
Total assets	370,440,000		354,227,000
Current liabilities:
Accounts payable	36,870,000		35,148,000
Intercompany payable	42,002,000		19,120,000
Accrued expenses	30,074,000		27,609,000
Deferred revenue	6,158,000		5,695,000
Deferred tax liability, noncurrent	4,000		4,000
Current portion of contingent earnout obligation	4,473,000		2,032,000
Current portion of working capital facilities	40,396,000
Other current liabilities	4,587,000		4,322,000
Total current liabilities	164,564,000		93,930,000
Senior secured revolving credit facility			37,943,000
Intercompany notes payable	174,464,000		174,826,000
Long-term contingent earnout obligation, less current portion	2,114,000		2,373,000
Other long-term liabilities	7,608,000		6,374,000
Total liabilities	348,750,000		315,446,000
Commitments and contingencies
Stockholders’ equity (deficit)	21,690,000		38,781,000
Total liabilities and stockholders' equity (deficit)	370,440,000		354,227,000
Parent Company [Member]
Current assets:
Intercompany receivable	10,667,000		10,431,000
Total current assets	10,667,000		10,431,000
Investment in subsidiaries	591,435,000		414,802,000
Intercompany notes receivable	174,464,000		174,826,000
Deferred financing costs, net			8,100,000
Total assets	776,566,000		608,159,000
Current liabilities:
Accrued interest expense	10,667,000		10,431,000
Total current liabilities	10,667,000		10,431,000
Senior unsecured notes payable	250,000,000		250,000,000
Senior secured revolving credit facility	143,853,000		45,027,000
Total liabilities	404,520,000		305,458,000
Commitments and contingencies
Stockholders’ equity (deficit)	372,046,000		302,701,000
Total liabilities and stockholders' equity (deficit)	$ 776,566,000		$ 608,159,000

[1] For segment purposes, the Company defines segment profit as earnings before interest expenses, income taxes, depreciation and amortization, share-based compensation expenses, acquisition related transaction costs and other expenses. A consolidated reconciliation from segment profit to income from operations is included below.

[2] Long-lived assets are noncurrent assets excluding deferred tax assets and deferred financing costs.

[3] Total assets and long-lived assets include goodwill. Goodwill recorded in connection with certain tax benefits to be realized in the Company's U.S. income tax returns has been reflected in the United States segment.