Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Current assets
Cash and cash equivalents	$ 452,928	$ 436,136	$ 242,604
Short-term marketable securities	0	0	5,000
Receivables, net	475,160	540,812	477,718
Contract assets	185,220	164,939	226,518
Inventories	86,611	82,362	98,765
Equity in construction joint ventures	186,536	188,798	190,458
Other current assets	64,286	42,199	60,001
Total current assets	1,450,741	1,455,246	1,301,064
Property and equipment, net	528,173	527,016	534,958
Long-term marketable securities	11,300	5,200	0
Investments in affiliates	75,159	75,287	73,249
Goodwill	116,807	116,777	248,339
Right of use assets	57,050	62,256	72,945
Deferred income taxes, net	41,361	41,839	51,675
Other noncurrent assets	93,093	96,375	102,145
Total assets	2,373,684	2,379,996	2,384,375
Current liabilities
Current maturities of long-term debt	8,700	8,278	8,253
Accounts payable	306,834	359,160	312,105
Contract liabilities	160,149	171,321	133,811
Accrued expenses and other current liabilities	524,452	404,497	355,393
Total current liabilities	1,000,135	943,256	809,562
Long-term debt	331,647	330,522	355,911
Long-term lease liabilities	41,707	46,769	57,985
Deferred income taxes, net	3,167	3,155	3,318
Other long-term liabilities	65,833	64,684	57,795
Commitments and contingencies (see Note 16)
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: 45,791,712 shares as of March 31, 2021, 45,668,541 shares as of December 31, 2020 and 45,592,292 shares as of March 31, 2020	458	457	457
Additional paid-in capital	554,186	555,407	551,189
Accumulated other comprehensive loss	(3,714)	(5,035)	(6,538)
Retained earnings	352,610	424,835	522,639
Total Granite Construction Incorporated shareholders’ equity	903,540	975,664	1,067,747
Non-controlling interests	27,655	15,946	32,057
Total equity	931,195	991,610	1,099,804
Total liabilities and equity	$ 2,373,684	$ 2,379,996	$ 2,384,375