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Debt (Tables) | 12 Months Ended
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Dec. 31, 2012
Debt [Abstract] |
Summary of long-term debt and short-term debt |
|  | 2012 |  |  | 2011 |
Borrowings under our $100,000 revolving credit facility bearing interest at a floating rate equal to LIBOR (0.25% at December 31, 2012) plus an applicable margin of 1.50%, expiring October 26, 2017. |  | $ | 38,087 |  |  | $ | 40,989 |
Borrowings under our $40,000 aggregate principal amount notes bearing interest at a fixed rate of 4.89% maturing on April 26, 2014. Annual principal payments of $5,714 began on April 26, 2008 and extend through the date of maturity. |  |  | 11,429 |  |  |  | 17,143 |
Borrowings under our $20,000 aggregate principal amount notes bearing interest at a fixed rate of 4.64% maturing on December 20, 2018. Annual principal payments of $4,000 will begin on December 22, 2014 and extend through the date of maturity. |  |  | 20,000 |  |  |  | 20,000 |
Total long-term debt |  |  | 69,516 |  |  |  | 78,132 |
Less current maturities of long-term debt |  |  | 5,801 |  |  |  | 6,503 |
Long-term debt, excluding current maturities |  | $ | 63,715 |  |  | $ | 71,629 |
Aggregate maturities of long-term debt including current portion |
Year ending December 31, |
2013 |  | $ | 5,801 |
2014 |  |  | 9,715 |
2015 |  |  | 4,000 |
2016 |  |  | 4,000 |
2017 |  |  | 42,000 |
Thereafter |  |  | 4,000 |
Total |  | $ | 69,516 |
Minimum future lease payments under both capital leases together with the present value of the net minimum lease payments |
Year ending December 31, |
2013 |  | $ | 479 |
2014 |  |  | 479 |
2015 |  |  | 479 |
2016 |  |  | 479 |
2017 |  |  | 479 |
Thereafter |  |  | 4,855 |
Total minimum lease payments |  |  | 7,250 |
Less interest included in payments above |  |  | (3,241 | )
Present value of minimum lease payments |  | $ | 4,009 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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- Definition Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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