Segment Information (Tables)

6 Months Ended

Jun. 30, 2017

Foreign Currency Disclosure [Text Block]

The following table reflects the average exchange rates used to translate the foreign entities respective local currency results of operations into United States dollars for the three and six months ended June 30, 2017 and 2016:



	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
United States dollar per Australian dollar	$	0.75	$	0.75	$	0.75	$	0.73
United States dollar per British pound	$	1.28	$	1.44	$	1.26	$	1.43
United States dollar per Canadian dollar	$	0.74	$	0.78	$	0.75	$	0.75
United States dollar per Euro	$	1.01	$	1.13	$	1.08	$	1.12

Schedule of segment reporting information, by segment [Table Text Block]

The following tables set forth select financial data for the Company's reportable segments for the three and six months ended June 30, 2017 and 2016 (dollars in thousands):



	Three Months Ended June 30, 2017
	North American Operations		Australian Operations		U.K./European Operations			Total Operations
Operating revenues:
Freight revenues	$	238,373	$	63,753	$	81,029		$	383,155
Freight-related revenues	61,183		11,500		54,938			127,621
All other revenues	16,118		1,556		11,983			29,657
Total operating revenues	$	315,674	$	76,809	$	147,950		$	540,433
Operating income	$	79,586	$	20,250	$	1,504		$	101,340
Depreciation and amortization	$	38,919	$	14,970	$	7,624		$	61,513
Interest expense, net	$	9,560	$	13,835	$	1,809		$	25,204
Provision for/(benefit from) income taxes	$	27,789	$	1,931	$	(123	)	$	29,597
Expenditures for additions to property & equipment, net of grants from outside parties	$	40,012	$	3,714	$	3,190		$	46,916



	Three Months Ended June 30, 2016
	North American Operations		Australian Operations		U.K./European Operations			Total Operations
Operating revenues:
Freight revenues	$	227,082	$	26,394	$	87,306		$	340,782
Freight-related revenues	60,978		27,129		45,581			133,688
All other revenues	16,515		1,760		8,630			26,905
Total operating revenues	$	304,575	$	55,283	$	141,517		$	501,375
Operating income/(loss)	$	79,023	$	9,381	$	(1,210	)	$	87,194
Depreciation and amortization	$	37,124	$	7,233	$	6,567		$	50,924
Interest expense, net	$	9,666	$	2,398	$	5,341		$	17,405
Provision for/(benefit from) income taxes	$	20,953	$	2,247	$	(1,088	)	$	22,112
Expenditures for additions to property & equipment, net of grants from outside parties	$	39,523	$	4,787	$	11,338		$	55,648



	Six Months Ended June 30, 2017
	North American Operations		Australian Operations		U.K./European Operations			Total Operations
Operating revenues:
Freight revenues	$	476,654	$	124,627	$	159,619		$	760,900
Freight-related revenues	126,528		23,209		97,221			246,958
All other revenues	31,968		2,880		16,835			51,683
Total operating revenues	$	635,150	$	150,716	$	273,675		$	1,059,541
Operating income/(loss)	$	147,156	$	37,409	$	(5,771	)	$	178,794
Depreciation and amortization	$	77,786	$	30,162	$	14,339		$	122,287
Interest expense, net	$	20,111	$	27,822	$	3,409		$	51,342
Provision for/(benefit from) income taxes	$	49,863	$	2,792	$	(1,130	)	$	51,525
Expenditures for additions to property & equipment, net of grants from outside parties	$	64,227	$	5,176	$	10,465		$	79,868



	Six Months Ended June 30, 2016
	North American Operations		Australian Operations			U.K./European Operations			Total Operations
Operating revenues:
Freight revenues	$	448,907	$	51,171		$	167,118		$	667,196
Freight-related revenues	122,503		52,619			92,024			267,146
All other revenues	32,943		3,291			13,415			49,649
Total operating revenues	$	604,353	$	107,081		$	272,557		$	983,991
Operating income/(loss)	$	149,001	$	(2,370	)	$	(2,441	)	$	144,190
Depreciation and amortization	$	73,313	$	13,889		$	13,052		$	100,254
Interest expense, net	$	20,130	$	4,793		$	10,382		$	35,305
Provision for/(benefit from) income taxes	$	36,962	$	(277	)	$	(1,765	)	$	34,920
Expenditures for additions to property & equipment, net of grants from outside parties	$	64,939	$	5,654		$	16,738		$	87,331

Certain asset information by segment [Table Text Block]

The following tables set forth select balance sheet data for the Company's reportable segments as of June 30, 2017 and December 31, 2016 (dollars in thousands):



	June 30, 2017
	North American Operations		Australian Operations		U.K./European Operations		Total Operations
Cash and cash equivalents	$	11,266	$	47,602	$	24,875	$	83,743
Property and equipment, net	$	3,607,366	$	660,454	$	322,920	$	4,590,740



	December 31, 2016
	North American Operations		Australian Operations		U.K./European Operations		Total Operations
Cash and cash equivalents	$	10,137	$	9,213	$	12,969	$	32,319
Property and equipment, net	$	3,590,625	$	634,148	$	278,546	$	4,503,319

- Definition

The entire disclosure for foreign currency transactions and translation. This may include description of foreign currency transactions, foreign currency gains and losses, explanation of change in cumulative translation adjustment, description of effect of subsequent foreign currency exchange rate change, cumulative translation adjustment movement, foreign currency translation adjustment by component movement, translation adjustment for net investment hedge movement, adjustment for long-term intercompany transactions, schedule of long-term intercompany balances and any other foreign currency transactions and translation related items.

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