Long-term Debt Obligations (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Obligations
Carrying value of long-term debt	$ 183,707	$ 105,328
Current portion of long-term debt and lease obligations	(4,388)	(3,496)
Non-current portion of long-term debt and lease obligations	179,319	101,832
Senior Notes [Member]
Obligations
Carrying value of long-term debt	175,000	0
Revolving Credit Facility [Member]
Obligations
Carrying value of long-term debt	0	97,250
Facility Lease Obligation [Member]
Obligations
Carrying value of long-term debt	1,936	2,334
Capital Lease Obligations [Member]
Obligations
Carrying value of long-term debt	$ 6,771	$ 5,744

Long term debt and capital lease obligations both current and noncurrent.

No definition available.

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- Details

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- Definition

Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section H

+ Details

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- Definition

Obligation related to long-term debt (excluding convertible debt) and capital leases, the portion which is due in one year or less in the future.

+ References

+ Details

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