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Summary of Significant Accounting Policies (Details 5) (USD $) | Dec. 31, 2013 | Dec. 31, 2012
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Fair Value, Measurements, Recurring [Member] |  |
Fair Value Measurements [Line Items] |  |
Asset for foreign currency derivative contracts | $ 104,000 |
Liability for foreign currency derivative contracts | (52,000) |
Total | 52,000 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Measurements [Line Items] |  |
Asset for foreign currency derivative contracts | 104,000 |
Liability for foreign currency derivative contracts | (52,000) |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Measurements [Line Items] |  |
Asset for foreign currency derivative contracts | 0 |
Liability for foreign currency derivative contracts | 0 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Measurements [Line Items] |  |
Asset for foreign currency derivative contracts | 0 |
Liability for foreign currency derivative contracts | 0 |
Fair Value, Measurements, Nonrecurring [Member] |  |
Fair Value Measurements [Line Items] |  |
Offshore Services assets | 3,000,000 | 14,000,000
Other | 0 |
Total | 3,000,000 |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value Measurements [Line Items] |  |
Offshore Services assets | 0 | 0
Other | 0 |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value Measurements [Line Items] |  |
Offshore Services assets | 0 | 0
Other | 0 |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value Measurements [Line Items] |  |
Offshore Services assets | 3,000,000 | 14,000,000
Other | 0 |
Fair Value, Measurements, Nonrecurring [Member] | Accumulated Other-than-Temporary Impairment [Member] |  |
Fair Value Measurements [Line Items] |  |
Offshore Services assets | 9,285,000 | 8,360,000
Other | 293,000 |
Total | $ 9,578,000 |

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