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Fair Value Measurements - (Tables)
6 Months Ended
Jun. 30, 2019
Fair Value Disclosures [Abstract]  
Estimated Fair Values of Financial Instruments
The estimated fair values of our financial instruments at the dates presented below are as follows: 
 
June 30,
 
December 31,
 
2019
 
2018
 
Carrying
 
Fair
 
Carrying
 
Fair
(In thousands)
Amount
 
Value
 
Amount
 
Value
Cash, cash equivalents and restricted cash (Level 1)
$
44,274

 
$
44,274

 
$
24,947

 
$
24,947

Short-term borrowings under revolving credit facilities (Level 2)
235,000

 
234,995

 
100,000

 
99,909

Other short-term debt (Level 1)

 

 
20,833

 
20,833

Long-term debt (Level 2)
675,000

 
635,244

 
675,000

 
612,546