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Goodwill and Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block]
The following table represents the changes in goodwill by segment:
 
Energy &
Chemicals
 
Distribution & Storage
 
BioMedical
 
Total
Balance at December 31, 2016
$
27,873

 
$
165,520

 
$
24,577

 
$
217,970

Foreign currency translation adjustments and other
—

 
262

 
—

 
262

Goodwill acquired during the year
10,120

 
—

 
—

 
10,120

Balance at March 31, 2017
$
37,993

 
$
165,782

 
$
24,577

 
$
228,352

 
 
 
 
 
 
 
 
Accumulated goodwill impairment loss
$
64,603

 
$
—

 
$
131,243

 
$
195,846
Schedule Of Finite Lived And Indefinite Lived Intangible Assets [Table Text Block]
The following table displays the gross carrying amount and accumulated amortization for finite-lived intangible assets and indefinite-lived intangible assets (exclusive of goodwill)(1)(2):
 
March 31, 2017
 
December 31, 2016
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Gross
Carrying
Amount
 
Accumulated
Amortization
Finite-lived intangible assets:
 
 
 
 
 
 
 
Unpatented technology
$
8,222

 
$
(3,309
)
 
$
8,186

 
$
(3,132
)
Patents and other
1,882

 
(743
)
 
1,235

 
(695
)
Trademarks and trade names
5,280

 
(2,369
)
 
4,918

 
(2,198
)
Customer relationships
126,845

 
(84,215
)
 
119,320

 
(81,614
)
     Land use rights
12,719

 
(929
)
 
12,650

 
(860
)
Total finite-lived intangible assets
$
154,948

 
$
(91,565
)
 
$
146,309

 
$
(88,499
)
Indefinite-lived intangible assets:
 
 
 
 
 
 
 
Trademarks and trade names
$
35,648

 
—

 
$
35,633

 
—

Total intangible assets
$
190,596

 
$
(91,565
)
 
$
181,942

 
$
(88,499
)
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
The Company estimates future amortization expense for its finite-lived intangible assets as follows:
For the Year Ending December 31,
 
2017
$
11,700

2018
10,600

2019
10,600

2020
9,000

2021
2,900
Schedule of Government Grants [Table Text Block]
Government grants at March 31, 2017 and December 31, 2016 are as follows:
 
March 31,
2017
 
December 31,
2016
Current
$
463

 
$
446

Long-term
8,240

 
8,153

Total government grants
$
8,703

 
$
8,599