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Derivative Financial Instruments and Hedging Activities (Tables)
 6 Months Ended
Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Interest Rate Derivatives
A summary of the Company’s outstanding interest rate swap agreements used to hedge variable rate debt at June 30, 2018 and 2017, respectively is as follows:
໿
 
 
For the three months ended June 30,
 
For the six months ended June 30,
(In thousands, except percentages and years)
 
2018
 
2017
 
2018
 
2017
Notional amount
 
$
60,000

 
$
60,000

 
$
60,000

 
$
60,000

Weighted average pay rate
 
1.26
%

1.26
%
 
1.26
%
 
1.26
%
Weighted average receive rate
 
1.94
%

1.07
%
 
1.58
%
 
0.98
%
Weighted average maturity in years
 
2.37

 
3.36

 
2.61

 
3.61

Unrealized gain (loss) relating to interest rate swaps
 
$
82

 
$
312

 
$
665

 
$
(231
)