Interest-Rate Swaps (Tables)
 12 Months Ended
Dec. 31, 2015
Derivative Instruments And Hedging Activities Disclosure [Abstract]  
Summary Information about Interest-Rate Swaps

Summary information about these interest-rate swaps as of year ended December 31, 2015, 2014 and 2013 is as follows:

 

 

 

2015

 

 

2014

 

 

2013

 

Notional amounts

 

$

30,763

 

 

$

31,459

 

 

$

25,195

 

Weighted average pay rate on interest-rate swaps

 

 

4.25

%

 

 

4.26

%

 

 

4.28

%

Weighted average receive rate on interest-rate swaps

 

 

2.70

%

 

 

2.67

%

 

 

2.82

%

Weighted average matuirity (years)

 

 

4.1

 

 

 

5.9

 

 

 

6.3

 

Fair value of combined interest-rate swaps

 

$

789

 

 

$

638

 

 

$

275