Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 70,791	$ 113,288
Accounts receivable - net	112,897	120,268
Contract revenues in excess of billings	50,889	26,412
Inventories	48,696	33,426
Prepaid expenses and other current assets	42,932	32,384
Total current assets	326,205	325,778
Property and equipment - net	316,460	310,520
Goodwill and other intangiable assets - net	98,729	98,863
Inventories- noncurrent	23,206	30,103
Investments in joint ventures	6,899	6,923
Other	18,461	16,273
Total	789,960	788,460
LIABILITIES AND EQUITY
Accounts payable	80,652	82,745
Accrued expenses	27,477	31,121
Billings in excess of contract revenues	19,999	13,627
Current portion of long term debt	2,658	3,033
Total current liabilities	130,786	130,526
Long term note payable	2,500	2,500
7 3/8% Senior notes	250,000	250,000
Deferred income taxes	102,920	104,352
OTHER	8,153	8,545
Total liabilities	494,359	495,923
EQUITY:
Common stock-$.0001 par value; 90,000,000 authorized, 59,110,847 and 58,999,404 shares issued and outstanding at March 31, 2012 and December 31, 2011, respectively.	6	6
Additional paid-in capital	269,613	267,918
Retained earnings	27,043	24,042
Accumulated other comprehensive income	(1,289)	3
Total Great Lakes Dredge & Dock Corporation Equity	295,373	291,969
Noncontrolling interests	228	568
Total equity	295,601	292,537
TOTAL	$ 789,960	$ 788,460