Note 13 - Reconciliation of Segment Profit to the Consolidated Statement of Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Segment Profit	[1]	$ 37,484	$ 31,952
Depreciation and amortization	[1]	(16,636)	(14,848)
Share-based compensation expense		(5,419)	(6,136)
Acquisition related transaction costs		(1,058)	(559)
Other income (expenses)		(969)	731
Income from operations		$ 13,402	$ 11,140

[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.