Note 10 - Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Debt [Table Text Block]

	December 31,
	2010		2011
	(in thousands)
Senior Unsecured Notes Payable (a)	$	—	$	250,000
Senior Secured Revolving Credit Facility, Bank of America, N.A. (b)		—		5,000
Working capital facilities, Barclays (c)		4,998		39,063
Various subordinated unsecured notes payable; maturing at various dates from 2011 through 2014 (d)		4,858		2,649
		9,856		296,712
Less current portion		2,312		1,932
	$	7,544	$	294,780

Schedule of Guarantor Obligations [Table Text Block]

Pricing Tier	Consolidated Senior Secured Leverage Ratio	Commitment Fee/Unused Line Fee	Letter of Credit Fee	Eurocurrency Rate Loans	Base Rate Loans
1	³ 2.50 to 1.0	0.50%	3.75%	3.75%	2.75%
2	≥ 2.00 to 1.0 but < 2.50 to 1.0	0.45%	3.50%	3.50%	2.50%
3	≥ 1.50 to 1.0 but < 2.00 to 1.0	0.40%	3.25%	3.25%	2.25%
4	≥ 1.00 to 1.0 but < 1.50 to 1.0	0.35%	3.00%	3.00%	2.00%
5	< 1.00 to 1.0	0.30%	2.75%	2.75%	1.75%

Schedule of Maturities of Long-term Debt [Table Text Block]

		Amount
Years ended December 31:
	2012	$	1,932
	2013		6,988
	2014		32,792
	2015		—
	2016		5,000
	Thereafter		250,000
Total		$	296,712