Note 10 - Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Debt [Table Text Block]

	December 31,
	2011		2012
	(in thousands)
Senior Unsecured Notes Payable (a)	$	250,000	$	250,000
Senior Secured Revolving Credit Facility, Bank of America, N.A. (b)		5,000		99,926
Working capital facilities, Barclays (c)		39,063		34,459
Various subordinated unsecured notes payable; maturing at various dates from 2011 through 2014 (d)		2,649		575
		296,712		384,960
Less current portion		1,932		6,258
	$	294,780	$	378,702

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	≥ 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:
2013	$	6,258
2014		28,776
2015		—
2016		99,926
2017		—
Thereafter		250,000
Total	$	384,960