Note 12 - Segment and Geographic Information (Details) - Summary of Revenues, Gross Profit and Operating Income (Loss) by Geographic Region (USD $) In Thousands, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Revenues:
Revenues	$ 352,181	[1]	$ 350,138	[2]	$ 322,868	$ 306,234	$ 315,679	[3]	$ 307,665	[3]	$ 242,100	$ 225,976	$ 1,331,421	[4]	$ 1,091,420	[4]	$ 1,016,831	[4]
Operating income (loss):
Operating income (loss)	(35,631)	[1]	(13,934)	[2]	20,619	9,134	22,209	[3]	22,032	[3]	15,823	6,818	(19,812)		66,882		81,803
Long-lived assets: (1)
Long-lived assets	178,921	[4],[5]					205,719	[4],[5]					178,921	[4],[5]	205,719	[4],[5]	210,497	[4],[5]
United States [Member]
Revenues:
Revenues													926,834	[4]	672,192	[4]	589,027	[4]
Operating income (loss):
Operating income (loss)													(45,945)		24,977		40,676
Long-lived assets: (1)
Long-lived assets	135,898	[4],[5]					154,367	[4],[5]					135,898	[4],[5]	154,367	[4],[5]	151,337	[4],[5]
Canada [Member]
Revenues:
Revenues													202,806	[4]	179,236	[4]	180,283	[4]
Operating income (loss):
Operating income (loss)													36,883		28,955		31,376
Long-lived assets: (1)
Long-lived assets	25,610	[4],[5]					28,539	[4],[5]					25,610	[4],[5]	28,539	[4],[5]	28,724	[4],[5]
Europe [Member]
Revenues:
Revenues													85,614	[4]	90,646	[4]	86,883	[4]
Operating income (loss):
Operating income (loss)													1,862		6,276		6,196
Long-lived assets: (1)
Long-lived assets	8,984	[4],[5]					10,007	[4],[5]					8,984	[4],[5]	10,007	[4],[5]	16,396	[4],[5]
Other foreign [Member]
Revenues:
Revenues													116,167	[4]	149,346	[4]	160,638	[4]
Operating income (loss):
Operating income (loss)													(12,612)		6,674		3,555
Long-lived assets: (1)
Long-lived assets	$ 8,429	[4],[5]					$ 12,806	[4],[5]					$ 8,429	[4],[5]	$ 12,806	[4],[5]	$ 14,040	[4],[5]

[1] Includes expenses of $9.5 million related to our 2014 Restructuring Plan and $52.7 million related to certain goodwill and definite-lived intangible asset impairments (see Notes 2, 3 and 5).

[2] Includes expenses of $40.0 million related to our 2014 Restructuring Plan (see Note 3).

[3] Includes the financial results of Brinderson, which was acquired in July 2013 (see Note 1).

[4] Revenues and long-lived assets are attributed to the country of origin for the Company’s legal entities. For a significant majority of its legal entities, the country of origin relates to the country or geographic area that it services.

[5] Long-lived assets as of December 31, 2014, 2013 and 2012 do not include intangible assets, goodwill or deferred tax assets.