Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Allowances for Doubtful Accounts Table

	Year Ended December 31,
	2017			2016			2015
	(In Thousands)
At beginning of period	$	6,291		$	7,847		$	2,485
Activity in the period:
Provision for doubtful accounts	1,428			2,436			5,387
Account (chargeoffs) recoveries	(5,965		)	(3,992		)	(25		)
At end of period	$	1,754		$	6,291		$	7,847

Inventories Table

	December 31,
	2017		2016
	(In Thousands)
Finished goods	$	66,377	$	62,064
Raw materials	4,027		2,429
Parts and supplies	38,248		35,548
Work in progress	11,402		6,505
Total inventories	$	120,054	$	106,546

Property, Plant, and Equipment Table

Buildings	15 –40years
Barges and vessels	5 – 30 years
Machinery and equipment	2 – 20 years
Automobiles and trucks	3 – 4 years
Chemical plants	15 – 30 years
Compressors	12 – 20 years

Goodwill Table

	Fluids		Production Testing			Compression			Offshore Services		Maritech		Total
	(In Thousands)
Balance as of December 31, 2014	$	6,636	$	53,682		$	233,548		$	—	$	—	$	293,866
Goodwill adjustments	—		(39,775		)	(141,146		)	—		—		(180,921		)
Balance as of December 31, 2015	6,636		13,907			92,402			—		—		112,945
Goodwill adjustments	—		(13,907		)	(92,402		)	—		—		(106,309		)
Balance as of December 31, 2016	6,636		—			—			—		—		6,636
Goodwill adjustments	—		—			—			—		$	—	—
Balance as of December 31, 2017	$	6,636	$	—		$	—		$	—	$	—	$	6,636

Services and Rentals Revenues and Costs Table

	Year Ended December 31,
	2017		2016		2015
	(In Thousands)
Rental revenue	$	60,514	$	55,909	$	143,601
Rental expenses	$	19,047	$	25,621	$	66,528

Fair Value Measurements on a Recurring Basis Table

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	Dec 31, 2017			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(61,436	)	$	—	$	—		$	(61,436	)
Warrants liability	(13,202		)	—		—			(13,202		)
Cash-settled stock appreciation rights	(97		)	—		—			(97		)
Asset for foreign currency derivative contracts	241			—		241			—
Liability for foreign currency derivative contracts	(378		)	—		(378		)	—
Total	$	(74,872	)

A summary of these recurring fair value measurements as of December 31, 2016, is as follows:

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Other Observable Inputs			Significant Unobservable Inputs
Description	Dec 31, 2016			(Level 1)		(Level 2)			(Level 3)
	(In Thousands)
CCLP Series A Preferred Units	$	(77,062	)	$	—	$	—		$	(77,062	)
Warrants liability	(18,503		)	—		—			(18,503		)
Asset for foreign currency derivative contracts	81			—		81			—
Liability for foreign currency derivative contracts	(371		)	—		(371		)	—
Total	$	(95,855	)

Fair Value Measurements on a Nonrecurring Basis Table

			Fair Value Measurements Using
			Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)	Year-to-Date Impairment Losses
Description	Fair Value
	(In Thousands)
Production Testing equipment	—		—	—	—	324
Production Testing intangible assets	3,206		—	—	—	14,552
Total	$	3,206				$	14,876

A summary of these nonrecurring fair value measurements during the year ended December 31, 2016, using the fair value hierarchy, is as follows:

				Fair Value Measurements Using
	Fair Value as of			Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Year-to-Date Impairment Losses
Description	Dec 31, 2016
	(In Thousands)
Compression equipment	$	—		$	—	$	—	$	—	$	2,357
Compression intangible assets	20,600		(1)	—		—		20,600		7,866
Compression goodwill	—			—		—		—		92,334
Production Testing equipment	—			—		—		—		3,592
Production Testing intangible assets	2,900		(1)	—		—		2,900		2,804
Production Testing goodwill	—			—		—		—		13,871
Offshore Services equipment	—			—		—		—		1,078
Fluids equipment and facilities	—			—		—		—		218
Fluids intangible assets	—			—		—		—		257
Total	$	23,500								$	124,377