Note 6 - Stockholders' Equity (Details) - Reclassification from Accumulated Other Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Loss on cash flow hedges	$ (2,984)	$ (3,449)
Income Taxes	16,010	13,695
Loss on cash flow hedges, net	24,734	22,055
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Loss on cash flow hedges	(134)
Income Taxes	51
Loss on cash flow hedges, net	$ (83)