Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 22,210	$ 23,057
Restricted cash	6,694	6,721
Trade accounts receivable, net of allowances	120,175	184,172
Inventories	128,405	117,009
Assets held for sale	729	772
Prepaid expenses and other current assets	19,226	22,298
Total current assets	297,439	354,029
Property, plant, and equipment:
Land and building	79,208	79,462
Machinery and equipment	1,353,135	1,345,969
Automobiles and trucks	36,816	43,536
Chemical plants	183,853	181,014
Construction in progress	10,642	6,505
Total property, plant, and equipment	1,663,654	1,656,486
Less accumulated depreciation	(686,199)	(608,482)
Net property, plant, and equipment	977,455	1,048,004
Other assets:
Goodwill	6,636	112,945
Patents, trademarks and other intangible assets, net of accumulated amortization	69,571	86,375
Deferred tax assets, net	24	25
Other assets	20,925	34,824
Total other assets	97,156	234,169
Total assets	1,372,050	1,636,202
Current liabilities:
Trade accounts payable	40,900	62,114
Unearned income	20,468	27,542
Accrued liabilities	53,158	80,970
Current portion of long-term debt	0	50
Decommissioning and other asset retirement obligations, net of current portion	376	14,570
Total current liabilities	114,902	185,246
Long-term debt, net of current portion	738,032	853,228
Deferred income taxes	8,251	9,467
Decommissioning and other asset retirement obligations, net	54,962	42,879
Preferred units	77,018	0
Other liabilities	21,651	31,202
Total long-term liabilities	899,914	936,776
Equity:
Common stock, par value $0.01 per share	927	830
Additional paid-in capital	325,653	256,184
Treasury stock, at cost	(18,207)	(16,837)
Accumulated other comprehensive income (loss)	(46,792)	(43,135)
Retained earnings	(85,732)	44,175
Total TETRA stockholders' equity	175,849	241,217
Noncontrolling interests	181,385	272,963
Total equity	357,234	514,180
Total liabilities and equity	$ 1,372,050	$ 1,636,202