Changes in Operations (Tables)

9 Months Ended

Sep. 30, 2015

Business Acquisition, Pro Forma Information [Table Text Block]

The following pro forma financial information does not include the impact of any costs to integrate the operations or the impact of derivative instruments that the Company has entered into or may enter into to mitigate interest rate risk (dollars in thousands, except per share amounts):

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2014		2015		2014
Operating revenues	$	622,458	$	1,642,167	$	1,814,405
Net income	$	81,100	$	163,988	$	174,457
Basic earnings per common share	$	1.46	$	2.89	$	3.16
Diluted earnings per common share	$	1.42	$	2.84	$	3.06

Freightliner [Member]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The following preliminary acquisition-date fair values were assigned to the acquired net assets (amounts in thousands):

	GBP		USD
Cash and cash equivalents	£	29,362	$	43,738
Accounts receivable	54,416		81,058
Materials and supplies	9,740		14,509
Prepaid expenses and other	19,770		29,449
Property and equipment	160,500		239,081
Goodwill	218,433		325,378
Intangible assets	360,100		536,405
Other assets	351		523
Total assets	852,672		1,270,141
Current portion of long-term debt	13,946		20,774
Accounts payable and accrued expenses	101,297		150,893
Long-term debt, less current portion	39,738		59,194
Deferred income tax liabilities, net	122,167		181,980
Other long-term liabilities	59,484		88,607
Net assets	£	516,040	$	768,693

Schedule Of Future Minimum Lease Payments [Table Text Block]

The following is a summary of future minimum lease payments under capital leases and operating leases for Freightliner as of March 25, 2015 (dollars in thousands):

	Capital		Operating		Total
2015 (April - December)	$	14,322	$	64,600	$	78,922
2016	16,992		74,622		91,614
2017	10,509		64,465		74,974
2018	7,050		56,425		63,475
2019	6,545		43,492		50,037
Thereafter	37,755		139,157		176,912
Total minimum payments	$	93,173	$	442,761	$	535,934

RCP&E [Member]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The following acquisition-date fair values were assigned to the acquired net assets (dollars in thousands):

Materials and supplies	$	3,621
Prepaid expenses and other	116
Property and equipment	217,032
Deferred income tax assets	325
Total assets	221,094
Current portion of long-term debt	1,121
Accounts payable and accrued expenses	108
Long-term debt, less current portion	1,260
Net assets	$	218,605