Cash percentage of par value if notes are converted.

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- Definition

2012 Credit Agreement early termination date.

+ References

No definition available.

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- Definition

Debt instrument maturity period.

+ References

No definition available.

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- Definition

Principal Amount Of Convertible Notes.

+ References

No definition available.

+ Details

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- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 4

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- Definition

Dividend or interest rate associated with the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction. Noncash are transactions that affect recognized assets or liabilities but that do not result in cash receipts or cash payments. Part noncash refers to that portion of the transaction not resulting in cash receipts or cash payments.

+ References

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- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

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-Name Accounting Standards Codification

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-SubTopic 20

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- Definition

Price of the entity's common stock which would be required to be attained for the conversion feature embedded in the debt instrument to become effective.

+ References

No definition available.

+ Details

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- Definition

The average effective interest rate during the reporting period.

+ References

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

+ Details

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

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-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Section S99

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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-Name Regulation S-X (SX)

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

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-Glossary Financing Activities

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Debt (Details Textual) (USD $)	6 Months Ended				6 Months Ended	12 Months Ended	6 Months Ended		6 Months Ended
Debt (Details Textual) (USD $)	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Jun. 30, 2013 Revolving Credit Facility	Jun. 30, 2013 2012 Credit Agreement	Dec. 31, 2012 2012 Credit Agreement	Jun. 30, 2013 2010 Convertible Notes	Dec. 31, 2012 2010 Convertible Notes	Jun. 30, 2013 2010 Convertible Notes Adjusted as a result of cash dividend declaration
Debt (Textual) [Abstract]
Term loan description					LIBOR plus 2.00%
Term Loan Libor rate					2.00%
Combined rate of interest on principle balance					2.28%	2.31%
Amount available under revolving credit facility				$ 100,000,000
Maturity period					2017-11
2012 Credit Agreement Early Termination Date					Dec. 01, 2016
Interest rate on senior subordinated convertible notes							3.00%
Unamortized OID	22,678,000		25,302,000				22,678,000	25,302,000
Maturity date of 2010 Convertible Notes							Mar. 01, 2017
Payments on long-term debt	7,500,000	17,000,000			7,500,000
Shares of common stock prior conversion							40.8998		41.1794
Principal amount of convertible notes							$ 1,000		$ 1,000
Conversion price on 2010 Convertible Notes	$ 24.28						$ 24.45		$ 24.28
Trading price of common stock							$ 31.79		$ 31.56
Rate of conversion price							130.00%		130.00%
Cash payable on conversion of 2010 Convertible Notes							100.00%