Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 23,917	$ 23,057
Restricted cash	6,688	6,721
Trade accounts receivable, net of allowances	110,685	184,172
Inventories	124,315	117,009
Assets held for sale	729	772
Prepaid expenses and other current assets	21,336	22,298
Total current assets	287,670	354,029
Property, plant, and equipment:
Land and building	79,288	79,462
Machinery and equipment	1,351,604	1,345,969
Automobiles and trucks	38,037	43,536
Chemical plants	183,816	181,014
Construction in progress	7,725	6,505
Total property, plant, and equipment	1,660,470	1,656,486
Less accumulated depreciation	(660,301)	(608,482)
Net property, plant, and equipment	1,000,169	1,048,004
Other assets:
Goodwill	6,636	112,945
Patents, trademarks and other intangible assets, net of accumulated amortization	71,314	86,375
Deferred tax assets, net	25	25
Other assets	20,609	34,824
Total other assets	98,584	234,169
Total assets	1,386,423	1,636,202
Current liabilities:
Trade accounts payable	46,684	62,114
Unearned income	21,752	27,542
Accrued liabilities	59,703	80,970
Current portion of long-term debt	0	50
Decommissioning and other asset retirement obligations, net of current portion	3,291	14,570
Total current liabilities	131,430	185,246
Long-term debt, net of current portion	788,222	853,228
Deferred income taxes	8,778	9,467
Decommissioning and other asset retirement obligations, net	51,732	42,879
Other liabilities	18,477	31,202
Total long-term liabilities	867,209	936,776
Equity:
Common stock, par value $0.01 per share	952	830
Additional paid-in capital	323,892	256,184
Treasury stock, at cost	(18,207)	(16,837)
Accumulated other comprehensive income (loss)	(45,465)	(43,135)
Retained earnings	(70,723)	44,175
Total TETRA stockholders' equity	190,449	241,217
Noncontrolling interests	197,335	272,963
Total equity	387,784	514,180
Total liabilities and equity	$ 1,386,423	$ 1,636,202