CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Current assets
Cash and cash equivalents ($115,933, $131,965 and $82,047 related to consolidated construction joint ventures (“CCJVs”))	$ 144,958	$ 272,804	$ 195,515
Short-term marketable securities	41,037	30,002	20,014
Receivables, net ($31,656, $21,237 and $38,828 related to CCJVs)	551,958	473,246	492,718
Contract assets ($23,500, $19,699 and $24,479 related to CCJVs)	257,650	219,754	265,190
Inventories	102,163	88,623	96,024
Equity in construction joint ventures	241,786	282,229	252,467
Other current assets ($11,440, $11,744 and $12,421 related to CCJVs)	63,056	48,731	49,100
Total current assets	1,402,608	1,415,389	1,371,028
Property and equipment, net ($31,560, $34,761 and $38,854 related to CCJVs)	557,118	549,688	595,787
Long-term marketable securities	20,000	36,098	61,191
Investments in affiliates	82,109	84,354	99,495
Goodwill	264,107	259,471	246,881
Right of use assets	73,439	0	0
Deferred income taxes, net	36,055	2,918	25,135
Other noncurrent assets	122,705	128,683	156,808
Total assets	2,558,141	2,476,601	2,556,325
Current liabilities
Current maturities of long-term debt	48,397	47,286	207,982
Accounts payable ($50,338, $37,086 and $35,375 related to CCJVs)	303,128	251,481	303,885
Contract liabilities ($29,055, $60,288 and $40,678 related to CCJVs)	119,289	105,449	91,864
Accrued expenses and other current liabilities ($4,017, $2,046 and $2,147 related to CCJVs)	339,047	273,626	293,959
Total current liabilities	809,861	677,842	897,690
Long-term debt	366,896	335,119	280,710
Lease liabilities	60,868	0	0
Deferred income taxes, net	4,680	4,317	5,759
Other long-term liabilities	58,268	61,689	71,180
Commitments and contingencies	0	0	0
Equity
Preferred stock, $0.01 par value, authorized 3,000,000 shares, none outstanding	0	0	0
Common stock, $0.01 par value, authorized 150,000,000 shares; issued and outstanding: 46,838,199 shares as of June 30, 2019, 46,665,889 shares as of December 31, 2018 and 45,688,582 shares as of June 30, 2018	468	467	457
Additional paid-in capital	568,264	564,559	516,680
Accumulated other comprehensive (loss) income	(3,448)	(749)	1,022
Retained earnings	642,124	787,356	737,417
Total Granite Construction Incorporated shareholders’ equity	1,207,408	1,351,633	1,255,576
Non-controlling interests	50,160	46,001	45,410
Total equity	1,257,568	1,397,634	1,300,986
Total liabilities and equity	$ 2,558,141	$ 2,476,601	$ 2,556,325