Note 10 - Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2014

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

	December 31, 2013		March 31, 2014
	(in thousands)
Senior Unsecured Notes Payable (a)	$	250,000	$	250,000
Senior Secured Revolving Credit Facility, Bank of America, N.A. (b)		45,027		116,039
Working capital facilities, Barclays (c)		37,943		42,436
Various subordinated unsecured notes payable; maturing at various dates from 2011 through 2014 (d)		318		—
		333,288		408,475
Less current portion		318		—
	$	332,970	$	408,475

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
Nine months ended December 31, 2014	$	—
Year ended December 31:
2015		42,436
2016		116,039
2017		—
2018		—
Thereafter		250,000
Total	$	408,475