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Note 12 - Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Schedule of Debt [Table Text Block]

		December 31, 2014				December 31, 2013
Revolving credit facility		$	299,061			$	148,647
3.84% Notes			150,000				150,000
6.40% Notes			12,500				25,000
5.44% Notes			20,000				40,000
Unamortized gain on settlement of interest rate swaps			1,828				107
Adjustments to long term debt resulting from interest rate swaps			27				(5,196	)
Capital leases maturing at various dates through 2018			4,228				2,555
Other long-term debt maturing at various dates up to 2018			5,704				11,681
			493,348				372,794
Less: current portion			36,396				44,785
Long-term debt - non-current		$	456,952			$	328,009

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

2015		$	36,396
2016			3,716
2017			300,661
2018			566
2019 and thereafter			152,009

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- Definition

Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

+ References

No definition available.

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- Definition

Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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