XML 45 R34.htm IDEA: XBRL DOCUMENT v3.7.0.1
Long-Term Debt Long-Term Debt (Tables)
 6 Months Ended
Jun. 30, 2017
Debt Disclosure [Abstract]  
Long-term debt
Long-term debt consists of the following (in thousands):
 
June 30,
 
December 31,
 
2017
 
2016
Unsecured notes
$
425,000

 
$
425,000

Credit Agreement
86,250

 
97,500

Unamortized discounts and issuance costs of unsecured notes
(4,947
)
 
(5,579
)
 
$
506,303

 
$
516,921

Current portion, long-term debt
$
15,000

 
$
15,000

Long-term debt
$
491,303

 
$
501,921