Accounts Receivable, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Receivables [Abstract]
Trade receivables	$ 54,980		$ 54,980		$ 66,292
Unbilled revenue	7,368		7,368		4,671
Other receivables	2,636		2,636		2,070
Accounts receivable, gross	64,984		64,984		73,033
Less: Allowance for doubtful accounts	(245)		(245)		(180)
Accounts receivable, net	64,739		64,739		72,853
Inventory Amount, Unpriced Change Orders for Long-term Contracts or Programs	424		424		2,034
Change in Accounting Estimate [Abstract]
Favorable adjustments	4,898	397	5,620	106
Unfavorable adjustments	(545)	(522)	(727)	(1,155)
Net operating income adjustments	4,353	(125)	4,893	(1,049)
Increase (Decrease) in Loss and Loss Adjustment Expense Reserve	$ 4,602		$ 5,267

Decrease in net earnings from cumulative adjustment on long-term contracts.

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Increase in net earnings from cumulative adjustment on long-term contracts

+ References

No definition available.

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Net cumulative catch-up adjustment on long-term contracts recognized under the cost to cost and units of delivery methods.

+ References

No definition available.

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Amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business.

+ References

No definition available.

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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.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Section 02

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The increase (decrease) during the reporting period in the reserve account established to account for expected but unspecified losses.

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-Publisher FASB

-Name Accounting Standards Codification

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Carrying amounts due as of the balance sheet date from parties or arising from transactions not otherwise specified in the taxonomy.

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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Total amount of unbilled change orders from customers under long-term contracts or programs associated with unpriced change orders or other similar items subject to uncertainty concerning their determination or ultimate realization.

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-Publisher FASB

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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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