Geographic Areas - Schedule of Segment Reporting (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 88,506
Products	71,045	$ 91,592
Services	28,128	27,636
Revenues	99,173	119,228
Depreciation	8,241	9,832
Income before income taxes	(4,482)	52
Long-Lived Assets	395,731		$ 391,256
Total Assets	1,397,862		1,399,805
Operating Segments
Segment Reporting Information [Line Items]
Revenues	99,173	119,228
Depreciation	8,241	9,833
Income before income taxes	(4,482)	52
Intercompany
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	0
Revenues	3,424	6,000
Eliminations
Segment Reporting Information [Line Items]
Revenues	(3,424)	(6,000)
DQ Corporate
Segment Reporting Information [Line Items]
Long-Lived Assets	(283,242)		(414,814)
Total Assets	(282,362)		(416,170)
DQ Corporate | Operating Segments
Segment Reporting Information [Line Items]
Revenues	(3,424)	(6,000)
Depreciation	563	599
Income before income taxes	(11,118)	(12,755)
DQ Corporate | Intercompany
Segment Reporting Information [Line Items]
Revenues	0	0
DQ Corporate | Eliminations
Segment Reporting Information [Line Items]
Revenues	(3,424)	(6,000)
Products
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	71,045
Products	71,045
Products | Operating Segments
Segment Reporting Information [Line Items]
Products		91,592
Products | Intercompany
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	0
Products | DQ Corporate | Operating Segments
Segment Reporting Information [Line Items]
Products		0
Total Services (excluding rental tools)
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	17,461
Services	17,461
Total Services (excluding rental tools) | Operating Segments
Segment Reporting Information [Line Items]
Services		14,535
Total Services (excluding rental tools) | Intercompany
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	0
Total Services (excluding rental tools) | DQ Corporate | Operating Segments
Segment Reporting Information [Line Items]
Services		0
Technical Advisory
Segment Reporting Information [Line Items]
Services	12,707	12,231
Technical Advisory | DQ Corporate
Segment Reporting Information [Line Items]
Services	0	0
Reconditioning
Segment Reporting Information [Line Items]
Services	4,754	2,304
Reconditioning | DQ Corporate
Segment Reporting Information [Line Items]
Services	0	0
Rental Tools
Segment Reporting Information [Line Items]
Revenues	10,667	13,101
Rental Tools | DQ Corporate
Segment Reporting Information [Line Items]
Revenues	0	0
Total Services (including rental tools)
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	28,128
Total Services (including rental tools) | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		27,636
Total Services (including rental tools) | Intercompany
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	0
Total Services (including rental tools) | DQ Corporate | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		0
Western Hemisphere
Segment Reporting Information [Line Items]
Long-Lived Assets	480,882		482,636
Total Assets	856,227		877,779
Western Hemisphere | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	51,518
Revenues	60,126	89,652
Depreciation	5,492	7,137
Income before income taxes	721	7,472
Western Hemisphere | Intercompany
Segment Reporting Information [Line Items]
Revenues	3,073	5,903
Western Hemisphere | Eliminations
Segment Reporting Information [Line Items]
Revenues	0	0
Western Hemisphere | Products | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	42,436
Products		65,287
Western Hemisphere | Total Services (excluding rental tools) | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	9,082
Services		9,239
Western Hemisphere | Technical Advisory
Segment Reporting Information [Line Items]
Services	6,241	7,320
Western Hemisphere | Reconditioning
Segment Reporting Information [Line Items]
Services	2,841	1,919
Western Hemisphere | Rental Tools
Segment Reporting Information [Line Items]
Revenues	5,535	9,223
Western Hemisphere | Total Services (including rental tools) | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	14,617	18,462
Eastern Hemisphere
Segment Reporting Information [Line Items]
Long-Lived Assets	135,436		264,828
Total Assets	635,387		752,967
Eastern Hemisphere | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	25,838
Revenues	30,229	20,233
Depreciation	1,211	1,080
Income before income taxes	5,659	3,491
Eastern Hemisphere | Intercompany
Segment Reporting Information [Line Items]
Revenues	186	31
Eastern Hemisphere | Eliminations
Segment Reporting Information [Line Items]
Revenues	0	0
Eastern Hemisphere | Products | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	19,865
Products		13,927
Eastern Hemisphere | Total Services (excluding rental tools) | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	5,973
Services		3,275
Eastern Hemisphere | Technical Advisory
Segment Reporting Information [Line Items]
Services	5,101	2,934
Eastern Hemisphere | Reconditioning
Segment Reporting Information [Line Items]
Services	872	341
Eastern Hemisphere | Rental Tools
Segment Reporting Information [Line Items]
Revenues	4,205	3,000
Eastern Hemisphere | Total Services (including rental tools) | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	10,178	6,275
Asia Pacific
Segment Reporting Information [Line Items]
Long-Lived Assets	62,655		58,606
Total Assets	188,610		$ 185,229
Asia Pacific | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	11,150
Revenues	12,242	15,343
Depreciation	975	1,017
Income before income taxes	256	1,844
Asia Pacific | Intercompany
Segment Reporting Information [Line Items]
Revenues	165	66
Asia Pacific | Eliminations
Segment Reporting Information [Line Items]
Revenues	0	0
Asia Pacific | Products | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	8,744
Products		12,378
Asia Pacific | Total Services (excluding rental tools) | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	2,406
Services		2,021
Asia Pacific | Technical Advisory
Segment Reporting Information [Line Items]
Services	1,365	1,977
Asia Pacific | Reconditioning
Segment Reporting Information [Line Items]
Services	1,041	44
Asia Pacific | Rental Tools
Segment Reporting Information [Line Items]
Revenues	927	878
Asia Pacific | Total Services (including rental tools) | Operating Segments
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax	3,333	2,899
Standard Products | Products
Segment Reporting Information [Line Items]
Products	59,918	76,999
Standard Products | Products | DQ Corporate
Segment Reporting Information [Line Items]
Products	0	0
Standard Products | Western Hemisphere | Products
Segment Reporting Information [Line Items]
Products	35,952	65,012
Standard Products | Eastern Hemisphere | Products
Segment Reporting Information [Line Items]
Products	17,461	7,041
Standard Products | Asia Pacific | Products
Segment Reporting Information [Line Items]
Products	6,505	4,946
Over Time Contracts | Products
Segment Reporting Information [Line Items]
Products	11,127	14,593
Over Time Contracts | Products | DQ Corporate
Segment Reporting Information [Line Items]
Products	0	0
Over Time Contracts | Western Hemisphere | Products
Segment Reporting Information [Line Items]
Products	6,484	275
Over Time Contracts | Eastern Hemisphere | Products
Segment Reporting Information [Line Items]
Products	2,404	6,886
Over Time Contracts | Asia Pacific | Products
Segment Reporting Information [Line Items]
Products	$ 2,239	$ 7,432