Gulf Island Fabrication, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Contract Costs - Additional Information (Detail)

Contract Costs - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Project	Sep. 30, 2012 Project	Dec. 31, 2012
Long-term Contracts or Programs Disclosure [Line Items]
Pass-through costs as a percentage of revenue	59.40%	58.20%	57.10%	46.00%
Prepaid subcontractor costs	$ 0		$ 0		$ 33,145,000
Costs and estimated earnings in excess of billings on uncompleted contracts, unbilled costs	71,789,000		71,789,000		26,317,000
Billings in excess of costs and estimated earnings ,advances	42,299,000		42,299,000		28,498,000
Total revenue recorded in relation to orders change in projects			3,900,000	1,700,000
Number of projects orders changed			2	2
Unbilled Contract Costs [Member]
Long-term Contracts or Programs Disclosure [Line Items]
Costs and estimated earnings in excess of billings on uncompleted contracts, unbilled costs	66,100,000		66,100,000
Contract Advances [Member]
Long-term Contracts or Programs Disclosure [Line Items]
Billings in excess of costs and estimated earnings ,advances	$ 34,900,000		$ 34,900,000

- Definition

Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date.

+ References + Details