CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets
Cash and equivalents	$ 985,824	$ 1,028,649
Short-term investments	40,000
Accounts receivable, net	983,457	846,415
Accounts receivable-related parties	4,198	22,422
Inventories	1,600,058	1,519,347
Other current assets	38,705	91,509
Total current assets	3,652,242	3,508,342
Property, plant and equipment, net	2,657,937	2,675,904
Intangible assets, net	249,983	256,909
Goodwill	386,045	386,893
Other assets	26,606	27,684
Total assets	6,972,813	6,855,732
Current liabilities
Accounts payable	544,419	473,765
Accounts payable-related parties	18,199	15,683
Income taxes payable	14,564	3,696
Accrued payroll and benefits	113,001	195,909
Accrued interest	47,936	25,533
Accrued expenses	112,975	125,138
Current maturities of long-term debt	9,646	28,795
Total current liabilities	860,740	868,519
Long-term debt	2,353,703	2,353,145
Deferred income taxes	314,736	305,949
Other liabilities	20,257	21,811
Total liabilities	3,549,436	3,549,424
Commitments and contingencies
Redeemable noncontrolling interests	111,240	111,240
Equity
Common stock voting, $.0025 par value; 900,000,000 shares authorized; 264,161,359 and 264,130,544 shares issued; and 236,951,784 and 243,785,4 shares outstanding, as of September 30, 2017 and December 31, 2016, respectively	644	644
Treasury stock, at cost; 27,209,575 and 20,345,059 shares, as of September 30, 2017 and December 31, 2016 respectively	(730,700)	(665,297)
Additional paid-in capital	1,142,871	1,141,534
Retained earnings	3,057,904	2,874,693
Total Steel Dynamics, Inc. equity	3,470,719	3,351,574
Noncontrolling interests	(158,582)	(156,506)
Total equity	3,312,137	3,195,068
Total liabilities and equity	$ 6,972,813	$ 6,855,732