Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
OPERATING REVENUES	$ 501,375	$ 542,219	$ 983,991	$ 939,249
OPERATING EXPENSES:
Labor and benefits	155,948	165,296	319,062	297,414
Equipment rents	38,426	43,483	76,856	65,515
Purchased services	51,632	56,177	98,134	80,558
Depreciation and amortization	50,924	48,048	100,254	90,265
Diesel fuel used in train operations	28,251	37,895	53,717	67,592
Electricity used in train operations	3,304	4,977	6,669	5,366
Casualties and insurance	9,442	10,038	19,562	18,561
Materials	21,393	26,929	42,984	45,624
Trackage rights	21,152	22,172	41,728	35,505
Net (gain)/loss on sale and impairment of assets	(308)	(490)	12,517	(807)
Restructuring costs	4,970	0	6,097	0
Other expenses	29,047	28,243	62,221	61,585
Total operating expenses	414,181	442,768	839,801	767,178
OPERATING INCOME	87,194	99,451	144,190	172,071
Interest income	336	124	411	150
Interest expense	(17,741)	(17,772)	(35,716)	(31,280)
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	0	0	0	(18,686)
Other income, net	722	334	1,453	648
Income before income taxes	70,511	82,137	110,338	122,903
Provision for income taxes	(22,112)	(29,300)	(34,920)	(46,162)
Net income	$ 48,399	$ 52,837	$ 75,418	$ 76,741
Basic earnings per common share	$ 0.85	$ 0.94	$ 1.32	$ 1.37
Weighted average shares - Basic	57,187	55,976	57,106	55,902
Diluted earnings per common share	$ 0.83	$ 0.92	$ 1.30	$ 1.34
Weighted average shares - Diluted	58,117	57,143	58,036	57,132