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Note 2 - Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Property, Plant and Equipment [Table Text Block]

		2014				2013			Estimated Life (Years)
Land		$	98,033			$	81,196			–
Buildings and improvements			233,742				205,778		31	–	39
Leasehold improvements			27,100				25,681		2	–	39
Machinery and shop equipment			48,988				42,274		5	–	20
Furniture, fixtures and computers			57,730				45,723		3	–	15
Transportation equipment			47,758				45,005		2	–	15
Lease and rental vehicles			697,147				547,557		2	–	8
Construction in progress			39,775				6,000
Accumulated depreciation and amortization			(327,193	)			(259,551	)
Total		$	923,080			$	739,663

Schedule of Goodwill [Table Text Block]

Balance December 31, 2012		$	198,257
Acquisitions			17,182
Adjustment			25
Balance December 31, 2013			215,464
Acquisitions			49,609
Adjustment			72
Balance December 31, 2014		$	265,145

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		2014				2013				2012
Expected stock volatility			51.51%				49.59%				53.64%
Weighted-average stock volatility			51.51%				49.59%				53.64%
Expected dividend yield			0.0%				0.0%				0.0%
Risk-free interest rate			2.14%				1.22%				1.11%
Expected life (years)			6.5				6.5				5.0
Weighted-average fair value of stock options granted		$	15.86			$	12.69			$	10.95

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 13

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Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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-Name Accounting Standards Codification

-Topic 350

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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-Name Accounting Standards Codification

-Topic 718

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-Section 50

-Paragraph 2

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