Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Debt Original Issue Value (Details) (USD $)	9 Months Ended
Debt Original Issue Value (Details) (USD $)	Sep. 30, 2012 Rate	Aug. 03, 2012	Dec. 31, 2011	Oct. 21, 2011
Debt Instrument [Line Items]
Debt repayment rate	2.50%
Line of Credit Facility, Maximum Borrowing Capacity				$ 25,000,000
uncommitted line of credit				25,000,000
Letters of Credit Outstanding, Amount	4,976,000	4,976,000		2,020,000
Line of Credit, Current	20,000,000		0
Long-term Debt, Gross				240,000,000
First Lien [Member]
Debt Instrument [Line Items]
Debt repayment rate	2.50%
Debt Instrument, Face Amount				155,000,000
Long-term Debt, Gross	0		151,125,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				5,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				10,000,000
Second Lien [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				85,000,000
Long-term Debt, Gross	0		85,000,000
Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				9,600,000
Payment in Kind (PIK) Note [Member]
Debt Instrument [Line Items]
Debt repayment rate	15.00%
Debt Instrument, Face Amount				$ 30,000,000