

Commitments Due by Period				Within		2 to		4 to		After
(thousands)		Total		1 Year		3 Years		5 Years		5 Years
Principal payments on long-term debt	$	60,000	$	—	$	60,000	$	—	$	—
Finance lease commitments/financing obligations ^(a)		278,576		46,289		81,308		58,728		92,251
Operating lease commitments ^(a)		229,907		47,571		76,490		48,277		57,569
Total	$	568,483	$	93,860	$	217,798	$	107,005	$	149,820

(a) Finance and operating lease commitments represent future undiscounted lease payments and include $44.7 million and $28.7 million, respectively, related to options to extend lease terms that are reasonably certain of being exercised.

We believe that we can fulfill our commitments utilizing our cash flow from operations and, if necessary, cash on hand and/or bank financing.

We are currently a party to various claims and legal proceedings incidental to the conduct of our business. If management believes that a loss arising from any of these matters is probable and can reasonably be estimated, we will record the amount of the loss, or the minimum estimated liability when the loss is estimated using a range, and no point within the range is more probable than another. As additional information becomes available, any potential liability related to these matters is assessed and the estimates are revised, if necessary. Litigation is subject to inherent uncertainties, and unfavorable rulings could occur and may include monetary damages. If an unfavorable ruling were to occur, there exists the possibility of a material adverse impact on the financial position and results of operations of the period in which any such ruling occurs, or in future periods.