Long-term Debt (Tables)

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Amounts borrowed, outstanding letters of credit and amounts available to borrow, net of certain reserves required under the Credit Facility, were as follows (in millions):

	June 30,		December 31,
	2013		2012
Amounts borrowed	$	47.0	$	73.3
Outstanding letters of credit	$	21.9	$	19.8
Amounts available to borrow (1)	$	120.9	$	97.7

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(1) Excluding $100 million expansion feature.

Total long-term debt consists of the following (in millions):

	June 30,		December 31,
	2013		2012
Amounts borrowed (Credit Facility)	$	47.0	$	73.3
Obligations under capital leases	11.6		11.4
Total long-term debt	$	58.6	$	84.7