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Debt Obligations (Tables)
 3 Months Ended
Mar. 31, 2015
DEBT OBLIGATIONS [Abstract]  
Schedule of Debt [Table Text Block]
A summary of debt obligation activity for the three months ended March 31, 2015 is presented below:
(in thousands)
 
Revolving
Credit
Facilities
 
Other Debt
Obligations
 
Capital
Leases
 
1.5%
Convertible
Debentures
Due 2044
 
Term Loan A
 
Total
Balance as of December 31, 2014
 
$
5,316

 
$
6,035

 
$
4,364

 
$
337,986

 
$
72,187

 
$
425,888

Increases (decreases):
 
 
 
 
 

 
 
 
 
 
 
Net borrowings (repayments)
 
252

 
(600
)
 
1,264

 
—

 
(938
)
 
(22
)
Accretion
 
—

 
—

 
—

 
2,425

 
—

 
2,425

Capital lease interest
 
—

 
—

 
86

 
—

 
—

 
86

Foreign currency exchange loss (gain)
 
48

 
(572
)
 
(351
)
 
—

 
—

 
(875
)
Balance as of March 31, 2015
 
5,616

 
4,863

 
5,363

 
340,411

 
71,249

 
427,502

Less — current maturities
 
—

 
(4,828
)
 
(2,186
)
 
—

 
(5,625
)
 
(12,639
)
Long-term obligations as of March 31, 2015
 
$
5,616

 
$
35

 
$
3,177

 
$
340,411

 
$
65,624

 
$
414,863