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Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2011
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Dec. 31, 2010
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Feb. 28, 2010
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Dec. 31, 2010
Percentage Of Sales Revenue By Major Customers On FASI Segment [Member]
|
Jun. 30, 2010
Percentage of Sales Revenue by an Individual Customer on a consolidated basis [Member]
|
Jun. 30, 2010
Percentage of Sales Revenue by an Individual Customer on FASI segment [Member]
|
Jun. 30, 2011
Carrying Value [Member]
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Jun. 30, 2011
Fair Value [Member]
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| Concentrations of Credit Risk [Abstract] | ||||||||
| Number of customers accounting for majority of FASI annual operating revenue | 4 | |||||||
| Concentration of operating revenue (in hundredths) | 70.40% | 2.30% | 15.40% | |||||
| Number of FASI customers receiving notice services would cease | 1 | |||||||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||
| Senior credit facility | $ 50,000 | $ 49,584 | ||||||
| Other debt and capital leases | $ 1,194 | $ 1,243 | ||||||
| Base reference rate of credit facilities | LIBOR | |||||||
| Basis spread on variable rate minimum (in hundredths) | 0.60% | |||||||
| Basis spread on variable rate maximum (in hundredths) | 0.90% | |||||||