PROPERTY, PLANT AND EQUIPMENT

12 Months Ended

Dec. 31, 2015

Property Plant And Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

3. PROPERTY, PLANT AND EQUIPMENT

As of December 31, 2015 and 2014, property, plant and equipment consisted of (dollars in thousands):

	December 31,			December 31,
	2015			2014
Cable systems, equipment and customer devices	$	2,250,245		$	2,143,668
Furniture, fixtures and office equipment		37,128			42,278
Vehicles		41,924			40,362
Buildings and leasehold improvements		35,870			34,720
Land and land improvements		7,908			7,998
Property, plant and equipment, gross	$	2,373,075		$	2,269,026
Accumulated depreciation		(1,589,422	)		(1,493,705	)
Property, plant and equipment, net	$	783,653		$	775,321

Depreciation expense related to fixed assets for the years ended December 31, 2015, 2014 and 2013 was $143.7 million, $153.5 million and $156.4 million, respectively. As of each of December 31, 2015, 2014 and 2013, we had no property under capitalized leases. We incurred gross interest costs of $95.7 million, $101.7 million and $97.3 million for the years ended December 31, 2015, 2014 and 2013, respectively, of which $1.0 million, $1.3 million and $1.1 million were capitalized during the years ended December 31, 2015, 2014 and 2013, respectively. See Note 2.