Segment Information (Tables)

3 Months Ended

6 Months Ended

Jun. 30, 2013

Jun. 30, 2013

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following table sets forth the Company's North American & European Operations and Australian Operations for the three months ended June 30, 2013 and 2012 (dollars in thousands):

	Three Months Ended June 30, 2013									Three Months Ended June 30, 2012
	North American & European Operations			Australian Operations			Total Operations			North American & European Operations			Australian Operations			Total Operations
Operating revenues	$	317,216		$	83,525		$	400,741		$	145,055		$	72,364		$	217,419
Income from operations	82,122			25,295			107,417			39,898			22,575			62,473
Depreciation and amortization	27,388			6,773			34,161			12,541			5,793			18,334
Interest expense	(13,282		)	(3,921		)	(17,203		)	(4,721		)	(3,901		)	(8,622		)
Interest income	915			35			950			819			145			964
Provision for income taxes	(19,387		)	(5,839		)	(25,226		)	(12,420		)	(6,023		)	(18,443		)
Expenditures for additions to property & equipment, net of grants from outside parties	59,215			13,558			72,773			13,934			32,442			46,376

The following table sets forth the Company's North American & European Operations and Australian Operations for the six months ended June 30, 2013 and 2012 (dollars in thousands):

	Six Months Ended June 30, 2013									Six Months Ended June 30, 2012
	North American & European Operations			Australian Operations			Total Operations			North American & European Operations			Australian Operations			Total Operations
Operating revenues	$	616,311		$	159,638		$	775,949		$	289,128		$	135,727		$	424,855
Income from operations	136,916			46,701			183,617			71,211			32,576			103,787
Depreciation and amortization	54,799			13,585			68,384			24,859			11,108			35,967
Interest expense	(29,093		)	(8,230		)	(37,323		)	(9,486		)	(7,752		)	(17,238		)
Interest income	1,804			189			1,993			1,624			207			1,831
Benefit from/(provision for) income taxes	10,662			(10,956		)	(294		)	(22,959		)	(7,789		)	(30,748		)
Expenditures for additions to property & equipment, net of grants from outside parties	73,926			32,400			106,326			26,738			61,519			88,257

Property and Equipment by Segment [Table Text Block]

The following table sets forth the property and equipment recorded in the consolidated balance sheets for the Company's North American & European Operations and Australian Operations as of June 30, 2013 and December 31, 2012 (dollars in thousands):

	June 30, 2013				December 31, 2012
	North American & European Operations		Australian Operations	Total Operations	North American & European Operations	Australian Operations	Total Operations
Property & equipment, net	$	2,797,455	$562,091	$3,359,546	$2,766,693	$629,602	$3,396,295