Note 3 - Unaudited Condensed Pro Forma Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2014
Revenue	$ 300,145	$ 879,856
Operating income	22,726	60,949
Net income	$ 13,071	$ 33,106
Earnings per share:
Basic earnings per share (in dollars per share)	$ 0.67	$ 1.68
Diluted earnings per share (in dollars per share)	$ 0.66	$ 1.65

Represents business acquisition pro forma operating income (loss).

No definition available.

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Period Type:	duration

- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

+ Details

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- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

+ Details

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

+ Details

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