Fair Value Accounting (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value Accounting [Abstract]

Assets and liabilities measured at fair value on recurring basis

	Fair Value Measurement as of December 31, 2011
	(in millions)
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	246.6	$	—	$	—	$	246.6
Restricted cash		240.3		—		—		240.3
Equity call agreement with TRIP Holdings equity investor (1)		—		—		0.7		0.7
Total assets	$	486.9	$	—	$	0.7	$	487.6
Liabilities:
Interest rate hedges (2)
Wholly-owned subsidiary	$	—	$	48.9	$	—	$	48.9
TRIP Holdings		—		4.8		—		4.8
Equity put agreement with TRIP Holdings equity investor (3)		—		—		3.1		3.1
Fuel derivative instruments (1)		—		0.1		—		0.1
Total liabilities	$	—	$	53.8	$	3.1	$	56.9

	Fair Value Measurement as of December 31, 2010
	(in millions)
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	286.0	$	—	$	—	$	286.0
Short-term marketable securities		158.0		—		—		158.0
Restricted cash		207.1		—		—		207.1
Fuel derivative instruments (1)		—		0.1		—		0.1
Total assets	$	651.1	$	0.1	$	—	$	651.2
Liabilities:
Interest rate hedges (2)
Wholly-owned subsidiary	$	—	$	45.7	$	—	$	45.7
TRIP Holdings		—		48.3		—		48.3
Total liabilities	$	—	$	94.0	$	—	$	94.0

⁽¹⁾ Included in other assets on the consolidated balance sheet.

⁽²⁾  Included in accrued liabilities on the consolidated balance sheet.

⁽³⁾ Included in other liabilities on the consolidated balance sheet.

Carrying amounts and estimated fair values of long-term debt

	December 31, 2011					December 31, 2010
	Carrying Value			Estimated Fair Value		Carrying Value			Estimated Fair Value
	(in millions)
Recourse:
Convertible subordinated notes	$	450.0		$	439.4	$	450.0		$	448.3
Less: unamortized discount		(99.8	)				(111.1	)
		350.2					338.9
Capital lease obligations		48.6			48.6		51.2			51.2
Term loan		54.7			55.7		57.4			54.2
Other		4.2			4.2		2.8			2.8
		457.7			547.9		450.3			556.5
Non-recourse:
2006 secured railcar equipment notes		269.3			278.5		283.2			302.8
Promissory notes		465.5			448.6		493.8			482.2
2009 secured railcar equipment notes		218.4			228.6		229.2			256.1
2010 secured railcar equipment notes		354.3			333.1		367.1			345.5
TILC warehouse facility		308.5			308.5		80.2			80.2
TRIP Holdings senior secured notes		61.2			61.6		—			—
TRIP Master Funding secured railcar equipment notes		840.0			834.9		—			—
TRIP Holdings warehouse loan		—			—		1,003.9			994.0
		2,517.2			2,493.8		2,457.4			2,460.8
Total	$	2,974.9		$	3,041.7	$	2,907.7		$	3,017.3