Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 238,174	$ 71,427
Accounts receivable, net of allowance	917,099	850,326
Contract assets	1,019,879	1,024,568
Inventories, net	85,541	100,069
Prepaid expenses	44,365	52,000
Other current assets	29,017	75,169
Total current assets	2,334,075	2,173,559
Property and equipment, net	994,193	905,835
Operating lease assets	187,531	229,903
Goodwill, net	1,231,717	1,221,440
Other intangible assets, net	191,673	211,528
Other long-term assets	262,560	254,741
Total assets	5,201,749	4,997,006
Current liabilities:
Current portion of long-term debt, including finance leases	138,935	118,429
Current portion of operating lease liabilities	74,439	81,561
Accounts payable	582,849	535,029
Accrued salaries and wages	108,796	87,562
Other accrued expenses	169,748	115,581
Contract liabilities	368,184	206,180
Other current liabilities	71,203	74,784
Total current liabilities	1,514,154	1,219,126
Long-term debt, including finance leases	1,164,457	1,314,030
Long-term operating lease liabilities	125,639	154,553
Deferred income taxes	301,216	296,326
Other long-term liabilities	219,138	221,280
Total liabilities	3,324,604	3,205,315
Commitments and contingencies (Note 14)
Equity
Preferred stock, $1.00 par value: authorized shares - 5,000,000; issued and outstanding shares – none	0	0
Common stock, $0.10 par value: authorized shares - 145,000,000; issued shares - 92,761,041 and 91,909,430 (including 1,732,454 and 1,221,593 of unvested stock awards) as of September 30, 2020 and December 31, 2019, respectively	9,276	9,191
Capital surplus	829,495	809,753
Retained earnings	1,720,435	1,510,709
Accumulated other comprehensive loss	(98,906)	(75,706)
Treasury stock, at cost: 18,941,926 shares and 15,344,917 shares as of September 30, 2020 and December 31, 2019, respectively	(586,955)	(466,727)
Total MasTec, Inc. shareholders’ equity	1,873,345	1,787,220
Non-controlling interests	3,800	4,471
Total equity	1,877,145	1,791,691
Total liabilities and equity	$ 5,201,749	$ 4,997,006
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	145,000,000	145,000,000
Common stock, shares issued	92,761,041	91,909,430
Treasury stock, shares	18,941,926	15,344,917
Common Stock [Member]
Equity
Total equity	$ 9,276	$ 9,191
Common stock, shares issued	92,761,041	91,909,430
Restricted Stock Awards [Member] | Common Stock [Member]
Unvested stock awards (in shares)	1,732,454	1,221,593