Summary of Significant Accounting Policies (Details 5) (USD $)	Dec. 31, 2013	Dec. 31, 2012
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