Note 1 - Description of Business (Details) - Business Acquisitions - Proforma Information (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Dec. 31, 2013		Dec. 31, 2013		Dec. 31, 2012
Business Acquisitions - Proforma Information [Abstract]
Revenues		[1]	$ 1,201,521		$ 1,239,825
Net income		[1]	$ 49,410	[1]	$ 65,995	[1]

[1] Includes pro-forma adjustments for purchase price depreciation and amortization as if those intangibles were recorded as of January 1 of the year preceding the respective acquisition date.