Share Repurchase Programs (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2012
Share Repurchase Programs (Textual) [Abstract]
Common stock repurchases	$ 106,286	$ 26,343
December Two Thousand Thirteen Anti Dilutive Share Repurchase Program [Member] [Domain]
Share Repurchase Programs (Textual) [Abstract]
Maximum number of share repurchases authorization	2,000,000
December Two Thousand Eleven Anti Dilutive Share Repurchase Program [Member] [Member]
Share Repurchase Programs (Textual) [Abstract]
Common stock repurchases	106,286
Maximum number of share repurchases authorization	2,000,000
December Two Thousand Nine Anti Dilutive Share Repurchase Program [Member]
Share Repurchase Programs (Textual) [Abstract]
Common stock repurchases		26,000
Common Stock [Member]
Share Repurchase Programs (Textual) [Abstract]
Repurchased and retired shares	(1,323,278)	(543,923)
Common stock repurchases	$ 662	$ 272

Represents maximum amount of shares authorized for repurchases under the Anti-Dilutive Share Repurchase Program.

No definition available.

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- Details

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- Definition

Number of shares that have been repurchased and retired during the period.

+ 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

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

+ Details

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