Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 48,384	$ 38,754
Restricted cash	8,721	9,067
Trade accounts receivable, net of allowance for doubtful accounts of $2,485 in 2014 and $1,349 in 2013	227,053	180,659
Deferred tax asset	392	14,740
Inventories	189,144	100,792
Assets held for sale	2,568	5,541
Prepaid expenses and other current assets	24,286	24,386
Total current assets	500,548	373,939
Property, plant, and equipment:
Land and building	75,200	42,954
Machinery and equipment	1,293,165	682,836
Automobiles and trucks	57,035	57,588
Chemical plants	174,108	175,494
Construction in progress	21,483	14,170
Total property, plant, and equipment	1,620,991	973,042
Less accumulated depreciation	(496,368)	(400,426)
Net property, plant, and equipment	1,124,623	572,616
Other assets:
Goodwill	293,941	188,159
Patents, trademarks, and other intangible assets, net of accumulated amortization of $39,754 in 2014 and $31,956 in 2013	105,967	31,980
Deferred tax assets	1,791	2,170
Other assets	40,966	37,669
Total other assets	442,665	259,978
Total assets	2,067,836	1,206,533
Current liabilities:
Trade accounts payable	119,240	69,220
Unearned income	70,688	1,742
Accrued liabilities	85,884	63,275
Current portion of long-term debt	90,074	89
Decommissioning and other asset retirement obligations, current	12,758	38,700
Total current liabilities	378,644	173,026
Long-term debt, net	844,961	387,727
Deferred income taxes	10,525	17,651
Decommissioning and other asset retirement obligations, net	49,983	12,204
Other liabilities	18,122	18,427
Total long-term and other liabilities	923,591	436,009
Equity:
Common stock, par value $.01 per share; 100,000,000 shares authorized; 82,322,876 shares issued at December 31, 2014, and 81,333,631 shares issued at December 31, 2013	823	813
Additional paid-in capital	241,166	234,360
Treasury stock, at cost; 2,672,930 shares held at December 31, 2014, and 2,478,084 shares held at December 31, 2013	(16,419)	(15,765)
Accumulated other comprehensive income (loss)	(26,215)	(3,903)
Retained earnings	170,358	340,036
Total TETRA stockholders' equity	369,713	555,541
Noncontrolling interest	395,888	41,957
Total equity	765,601	597,498
Total liabilities and equity	$ 2,067,836	$ 1,206,533