Property and Equipment and Leases (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Line Items]

Major classifications of property and equipment as of December 31, 2015 and 2014 were as follows (dollars in thousands):



	2015
	Gross Book Value		Accumulated Depreciation			Net Book Value
Property:
Land and land improvements	$	648,498	$	—		$	648,498
Buildings and leasehold improvements	238,272		(32,624		)	205,648
Bridges/tunnels/culverts	662,287		(85,040		)	577,247
Track property	2,508,100		(403,778		)	2,104,322
Total property	4,057,157		(521,442		)	3,535,715
Equipment:
Computer equipment	18,633		(11,709		)	6,924
Locomotives and railcars	653,077		(173,214		)	479,863
Vehicles and mobile equipment	65,241		(34,656		)	30,585
Signals and crossing equipment	69,315		(30,754		)	38,561
Track equipment	28,440		(11,628		)	16,812
Other equipment	73,405		(13,846		)	59,559
Total equipment	908,111		(275,807		)	632,304
Construction-in-process	47,044		—			47,044
Total property and equipment	$	5,012,312	$	(797,249	)	$	4,215,063



	2014
	Gross Book Value		Accumulated Depreciation			Net Book Value
Property:
Land and land improvements	$	582,383	$	—		$	582,383
Buildings and leasehold improvements	126,860		(22,719		)	104,141
Bridges/tunnels/culverts	636,605		(60,771		)	575,834
Track property	2,350,647		(357,969		)	1,992,678
Total property	3,696,495		(441,459		)	3,255,036
Equipment:
Computer equipment	13,997		(8,352		)	5,645
Locomotives and railcars	531,948		(145,073		)	386,875
Vehicles and mobile equipment	54,419		(31,209		)	23,210
Signals and crossing equipment	65,581		(22,408		)	43,173
Track equipment	27,073		(9,019		)	18,054
Other equipment	29,532		(16,017		)	13,515
Total equipment	722,550		(232,078		)	490,472
Construction-in-process	42,974		—			42,974
Total property and equipment	$	4,462,019	$	(673,537	)	$	3,788,482

Railcars and Locomotives Leased

The number of railcars and locomotives leased by the Company as of December 31, 2015 and 2014 was as follows:

Schedule of Rent Expense

The Company's operating lease expense for equipment and real property leases and expense for the use of other railroad and other third parties' track for the years ended December 31, 2015, 2014 and 2013 was as follows (dollars in thousands):



	2015		2014		2013
Equipment	$	82,853	$	29,462	$	32,050
Real property	$	11,715	$	8,361	$	8,062
Trackage rights	$	78,140	$	53,783	$	50,911

Schedule of Future Minimum Lease Payments for Capital Leases

The following is a summary of future minimum lease payments under capital leases and operating leases as of December 31, 2015 (dollars in thousands):



	Capital		Operating		Total
2016	$	24,841	$	112,230	$	137,071
2017	18,935		93,761		112,696
2018	10,398		81,471		91,869
2019	9,827		64,122		73,949
2020	16,672		50,601		67,273
Thereafter	43,738		304,819		348,557
Total minimum payments	$	124,411	$	707,004	$	831,415

Schedule of Future Minimum Lease Payments for Operating Leases

The following is a summary of future minimum lease payments under capital leases and operating leases as of December 31, 2015 (dollars in thousands):



	Capital		Operating		Total
2016	$	24,841	$	112,230	$	137,071
2017	18,935		93,761		112,696
2018	10,398		81,471		91,869
2019	9,827		64,122		73,949
2020	16,672		50,601		67,273
Thereafter	43,738		304,819		348,557
Total minimum payments	$	124,411	$	707,004	$	831,415

Construction in Progress [Member]

Property, Plant and Equipment [Line Items]

Property and Equipment



	2015		2014
Property:
Buildings and leasehold improvements	$	2,097	$	1,312
Bridges/tunnels/culverts	39		4,082
Track property	24,962		24,078
Equipment:
Locomotives and railcars	12,875		11,170
Other equipment	7,071		2,332
Total construction-in-process	$	47,044	$	42,974

December 31,

Locomotives