Long-Term Indebtedness	9 Months Ended
Sep. 30, 2011
Long-Term Indebtedness [Abstract]
Long-Term Indebtedness	8. Long-Term Indebtedness The Company had $8.1 million outstanding at September 30, 2011 under its line of credit at a weighted average interest rate of 2.5 percent. The Company had no debt outstanding at September 30, 2010 and December 31, 2010. On February 24, 2011, the Company entered into an agreement (the "Credit Agreement") for a $50.0 million line of credit with JPMorgan Chase Bank, N.A. and Wells Fargo Bank, N.A. (collectively, the "Lenders"), amending the Company's previous $50.0 million line of credit that was scheduled to expire in December 2011. The maximum borrowings under the Company's line of credit can be increased by $20.0 million upon approval of the Lenders. Interest on borrowings under the line of credit is designated from time to time by the Company as either (i) the Prime Rate, but not less than 2.5 percent, plus additional interest up to 0.8 percent (0 percent at September 30, 2011), or (ii) LIBOR plus additional interest ranging from 2.0 percent to 2.8 percent (2.0 percent at September 30, 2011) depending on the Company's performance and financial condition. The Credit Agreement expires on January 1, 2016. At September 30, 2011, the Company had availability of $38.3 million, as there was $8.1 million of borrowing and $3.6 million in outstanding letters of credit under the line of credit. Simultaneously, the Company entered into a $150.0 million "shelf-loan" facility with Prudential Investment Management, Inc. and its affiliates ("Prudential"), amending and increasing the Company's previous $125.0 million "shelf-loan" facility with Prudential. The facility provides for Prudential to consider purchasing, at the Company's request, in one or a series of transactions, Senior Promissory Notes of the Company in the aggregate principal amount of up to $150.0 million, to mature no more than twelve years after the date of original issue of each Senior Promissory Note. Prudential has no obligation to purchase the Senior Promissory Notes. Interest payable on the Senior Promissory Notes will be at rates determined by Prudential within five business days after the Company issues a request to Prudential. At September 30, 2011 and 2010, as well as December 31, 2010, there were no Senior Promissory Notes outstanding. This facility expires on February 24, 2014. Both the line of credit pursuant to the Credit Agreement and the "shelf-loan" facility are subject to a maximum leverage ratio covenant which limits the amount of consolidated outstanding indebtedness to 2.5 times the trailing twelve-month EBITDA, as defined. As a result, the remaining availability under these facilities was $176.5 million at September 30, 2011. The Company believes this availability is more than adequate to finance the Company's anticipated working capital and capital expenditure requirements for the next twelve months. Pursuant to the Credit Agreement and "shelf-loan" facility, at September 30, 2011 the Company is required to maintain minimum interest and fixed charge coverages, and to meet certain other financial requirements. At September 30, 2011, the Company was in compliance with all such requirements, and expects to remain in compliance for the next twelve months. Borrowings under both the line of credit and the "shelf-loan" facility are secured on a pari passu basis by first priority liens on the capital stock or other equity interests of each of the Company's direct and indirect subsidiaries.

Long-Term Indebtedness

9 Months Ended

Sep. 30, 2011

8. Long-Term Indebtedness

The Company had $8.1 million outstanding at September 30, 2011 under its line of credit at a weighted average interest rate of 2.5 percent. The Company had no debt outstanding at September 30, 2010 and December 31, 2010.

On February 24, 2011, the Company entered into an agreement (the "Credit Agreement") for a $50.0 million line of credit with JPMorgan Chase Bank, N.A. and Wells Fargo Bank, N.A. (collectively, the "Lenders"), amending the Company's previous $50.0 million line of credit that was scheduled to expire in December 2011. The maximum borrowings under the Company's line of credit can be increased by $20.0 million upon approval of the Lenders. Interest on borrowings under the line of credit is designated from time to time by the Company as either (i) the Prime Rate, but not less than 2.5 percent, plus additional interest up to 0.8 percent (0 percent at September 30, 2011), or (ii) LIBOR plus additional interest ranging from 2.0 percent to 2.8 percent (2.0 percent at September 30, 2011) depending on the Company's performance and financial condition. The Credit Agreement expires on January 1, 2016. At September 30, 2011, the Company had availability of $38.3 million, as there was $8.1 million of borrowing and $3.6 million in outstanding letters of credit under the line of credit.

Simultaneously, the Company entered into a $150.0 million "shelf-loan" facility with Prudential Investment Management, Inc. and its affiliates ("Prudential"), amending and increasing the Company's previous $125.0 million "shelf-loan" facility with Prudential. The facility provides for Prudential to consider purchasing, at the Company's request, in one or a series of transactions, Senior Promissory Notes of the Company in the aggregate principal amount of up to $150.0 million, to mature no more than twelve years after the date of original issue of each Senior Promissory Note. Prudential has no obligation to purchase the Senior Promissory Notes. Interest payable on the Senior Promissory Notes will be at rates determined by Prudential within five business days after the Company issues a request to Prudential. At September 30, 2011 and 2010, as well as December 31, 2010, there were no Senior Promissory Notes outstanding. This facility expires on February 24, 2014.

Both the line of credit pursuant to the Credit Agreement and the "shelf-loan" facility are subject to a maximum leverage ratio covenant which limits the amount of consolidated outstanding indebtedness to 2.5 times the trailing twelve-month EBITDA, as defined. As a result, the remaining availability under these facilities was $176.5 million at September 30, 2011. The Company believes this availability is more than adequate to finance the Company's anticipated working capital and capital expenditure requirements for the next twelve months.

Pursuant to the Credit Agreement and "shelf-loan" facility, at September 30, 2011 the Company is required to maintain minimum interest and fixed charge coverages, and to meet certain other financial requirements. At September 30, 2011, the Company was in compliance with all such requirements, and expects to remain in compliance for the next twelve months.

Borrowings under both the line of credit and the "shelf-loan" facility are secured on a pari passu basis by first priority liens on the capital stock or other equity interests of each of the Company's direct and indirect subsidiaries.