CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 144,701	$ 185,740
Accounts receivable, net	232,855	182,238
Inventories, net	119,084	124,432
Prepaid expenses and other current assets	17,926	16,155
Income tax deposits	0	475
Total current assets	514,566	509,040
Property, plant and mine development, net	1,487,221	1,517,587
Operating lease right-of-use assets	48,847	53,098
Goodwill	185,649	273,524
Intangible assets, net	181,597	183,815
Other assets	15,244	16,170
Total assets	2,433,124	2,553,234
Current Liabilities:
Accounts payable and accrued expenses	196,959	248,237
Current portion of operating lease liabilities	50,402	53,587
Current portion of long-term debt	40,233	18,463
Current portion of deferred revenue	9,799	15,111
Total current liabilities	297,393	335,398
Long-term debt, net	1,212,264	1,213,985
Deferred revenue	38,310	35,523
Liability for pension and other post-retirement benefits	65,475	58,453
Deferred income taxes, net	33,940	38,585
Operating lease liabilities	108,741	117,964
Other long-term obligations	37,407	36,746
Total liabilities	1,793,530	1,836,654
Commitments and Contingencies (Note O)
Stockholders’ Equity:
Preferred stock, $0.01 par value, 10,000,000 shares authorized; zero issued and outstanding at March 31, 2020 and December 31, 2019	0	0
Common stock, $0.01 par value, 500,000,000 shares authorized; 82,835,684 issued and 73,757,495 outstanding at March 31, 2020; 82,601,926 issued and 73,601,950 outstanding at December 31, 2019	824	823
Additional paid-in capital	1,187,962	1,185,116
Retained deficit	(353,862)	(279,956)
Treasury stock, at cost, 9,078,189 and 8,999,976 shares at March 31, 2020 and December 31, 2019, respectively	(181,369)	(180,912)
Accumulated other comprehensive loss	(25,060)	(19,854)
Total U.S. Silica Holdings, Inc. stockholders’ equity	628,495	705,217
Non-controlling interest	11,099	11,363
Total stockholders' equity	639,594	716,580
Total liabilities and stockholders’ equity	$ 2,433,124	$ 2,553,234