Note 5 - Long-Term Debt and Credit Facility (Detail) - Long-Term Debt, Term Note and Notes Payable (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Term note, current annualized rate 2.53% due August 31, 2016	$ 218,750	$ 243,750
Other notes with interest rates from 2.5% to 5.8%	36,873	5,659
Subtotal	255,623	249,409
Less – Current maturities and notes payable	33,775	26,541
Total	$ 221,848	$ 222,868