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Number of share instruments newly issued under a share-based compensation plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Amount of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

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-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Common Stock (Details) (USD $)	3 Months Ended	0 Months Ended	11 Months Ended	3 Months Ended
Common Stock (Details) (USD $)	Mar. 31, 2015	May 16, 2014	Mar. 31, 2015	Mar. 31, 2014	May 14, 2004
Common Stock [Line Items]
Repurchase program, amount repurchased	$ 1,828,000
May 2014 Stock Repurchase Plan [Member]
Common Stock [Line Items]
Repurchase program, amount authorized		10,000,000
Repurchase program, amount repurchased			5,900,000
Repurchase program, remaining amount authorized	$ 4,100,000
May 2004 Stock Repurchase Plan [Member]
Common Stock [Line Items]
Repurchase program, shares authorized					350,000
Executive Officer [Member] \| Class A Nonvoting Common Stock [Member]
Common Stock [Line Items]
Stocks granted	160,643			125,209