Note 7 - Derivative Financial Instruments (Detail) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Dec. 31, 2009 USD ($)	Mar. 31, 2013 USD ($)	Mar. 31, 2013 EUR (€)
Notional Amount of Foreign Currency Cash Flow Hedge Derivatives (in Euro)			€ 18.0
Derivative, Amount of Hedged Item		100.0
Cash Paid For Interest Rate Swaps Settlement	6.4
Reclassified Amount From Accumulated Oci Associated With Interest Rate Swaps		$ 0.3