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Borrowings | 6 Months Ended
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Jun. 30, 2014
Borrowings [Abstract] |
Borrowings | (8) Borrowings 5.5% senior convertible notes and interest expense In November 2011, the Company issued $152,000 of 5.50% senior convertible notes due December 2016. These notes are senior unsecured obligations and rank equal in right of payment with all the Company’s existing and future senior unsecured indebtedness. The notes accrue interest at the rate of 5.50% per year payable in cash semi-annually on June 15 and December 15 of each year. The following table summarizes the principal amounts and related unamortized discount on convertible notes at June 30, 2014 and December 31, 2013:
(in thousands) | 2014 |  | 2013
Principal amount of convertible notes | $ | 12,540 |  | $ | 12,540
Unamortized discount on convertible notes |  | (955) |  |  | (1,124)
Net carrying value | $ | 11,585 |  | $ | 11,416
These notes are convertible into shares of the Company’s Common Stock at a conversion rate equivalent to 69.9032 shares of Common Stock per $1 principal amount of notes, which represents a conversion rate of approximately $14.31 per share of Common Stock. The conversion rate is subject to adjustment in certain circumstances as more fully set forth in the indenture covering the notes. Conditions for conversion have been satisfied and the notes are convertible. No notes were converted during the first six months of 2014. The remaining notes are convertible into approximately 876 shares of common stock. In certain circumstances provided for in the indenture, the number of shares of common stock issuable upon conversion of the notes may be increased, and with it the aggregate principal amount of the notes. Unless earlier repurchased or converted, the notes will mature on December 15, 2016. The notes were issued with an effective yield of 5.96% based upon an original issue discount at 98.0%. The net proceeds from the issuance of these notes, after deducting original issue discount and capitalized issuance costs of $6,634, amounted to $145,366. The capitalized issuance costs are being amortized to interest expense over the life of the notes, or realized upon conversion of the notes. Upon certain terms and conditions, the Company may elect to satisfy its conversion obligation with respect to the notes by paying cash, in whole or in part, for specified aggregate principal amount of the notes. In the event of certain types of fundamental changes, the Company will increase the conversion rate by a number of additional shares, up to a maximum of 1,118 shares, which equates to a conversion price of approximately $11.22 per share.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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