CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating Activities
Net loss	$ (4,200)	$ (1,083)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation, depletion and amortization	29,573	30,464
Non-cash restructuring, net	(1,888)	661
Other non-cash impairment charges	2,752	0
Gain on sales of property and equipment	(4,871)	(5,974)
Stock-based compensation	6,492	5,913
Changes in assets and liabilities, net of the effects of consolidations:
Receivables	(20,771)	(36,910)
Costs and estimated earnings in excess of billings, net	(47,201)	(39,391)
Inventories	(16,528)	(13,709)
Real estate held for development and sale	722	(1,820)
Equity in construction joint ventures	(6,792)	(12,937)
Other assets, net	15,031	5,353
Accounts payable	27,632	49,964
Accrued expenses and other current liabilities, net	(14,575)	2,733
Net cash used in operating activities	(34,624)	(16,736)
Investing Activities
Purchases of marketable securities	(39,945)	(65,287)
Maturities of marketable securities	65,100	58,375
Proceeds from sale of marketable securities	35,000	19,268
Additions to property and equipment	(19,855)	(27,542)
Proceeds from sales of property and equipment	6,078	10,266
Other investing activities, net	(978)	120
Net cash provided by (used in) investing activities	45,400	(4,800)
Financing Activities
Long-term debt principal payments	(10,834)	(16,151)
Cash dividends paid	(10,050)	(10,061)
Purchase of common stock	(4,054)	(3,662)
Distributions to noncontrolling partners, net	(5,440)	(11,616)
Other financing activities, net	563	1,073
Net cash used in financing activities	(29,815)	(40,417)
Decrease in cash and cash equivalents	(19,039)	(61,953)
Cash and cash equivalents at beginning of period	256,990	252,022
Cash and cash equivalents at end of period	237,951	190,069
Cash paid during the period for:
Interest	7,158	8,812
Income taxes	771	240
Non-cash investing and financing activities:
Restricted stock/units issued, net of forfeitures	11,417	4,598
Accrued cash dividends	5,029	5,027
Debt payments out of escrow from sale of assets	1,109	3,277
Debt extinguishment from joint venture interest transfer	9,115	0
Debt payment from refinance	$ 1,150	$ 0