Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT

v3.3.1.900
PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment consisted of the following at December 31, (in thousands):
 
Estimated
Useful Life
 
2015
 
2014
 
(in Years)
 
 
 
 
Land
-

 
$
10,463

 
$
10,463

Buildings
25

 
64,154

 
63,837

Machinery and equipment
3 to 25

 
223,521

 
228,284

Furniture and fixtures
3 to 5

 
5,354

 
5,354

Transportation equipment
3 to 5

 
3,481

 
3,748

Improvements
15

 
127,727

 
125,265

Construction in progress
-

 
2,488

 
1,177

 
 
 
437,188

 
438,128

Less accumulated depreciation
 
 
236,804

 
213,351

 
 
 
$
200,384

 
$
224,777


We lease certain equipment used in the normal course under month-to-month lease agreements cancelable only by us. During 2015, 2014, and 2013, we expensed $5.9 million, $5.6 million, and $9.5 million, respectively, related to these leases.
We lease our corporate office and parking facilities located in Houston, Texas. Leased premises consist of office space of approximately 8,000 square feet. The term of the lease matures on January 31, 2020. The schedule of minimum rental payments for our corporate office leases is as follows (in thousands):
2016
$
217

2017
221

2018
225

2019
229

2020
19

Total
$
911