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Trade Accounts Receivable (Details) (USD $)
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Dec. 31, 2012
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Dec. 31, 2011
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| Trade Accounts Receivable | ||
| Total trade accounts receivable | $ 228,267,000 | $ 231,444,000 |
| Allowance for doubtful accounts | (16,894,000) | (18,484,000) |
| Total trade accounts receivable, net | 211,373,000 | 212,960,000 |
| Advances and progress billings for contracts in process | 5,000,000 | 12,000,000 |
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Trade accounts receivables
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| Trade Accounts Receivable | ||
| Total trade accounts receivable | 188,463,000 | 203,774,000 |
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Contracts in process
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| Trade Accounts Receivable | ||
| Total trade accounts receivable | $ 39,804,000 | $ 27,670,000 |
| X | ||||||||||
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- Details
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- Definition
Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the offset related to government or other customer advances received on a contract when the expected advances will be applied in payment to those particular charges of the receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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