XML 39 R46.htm IDEA: XBRL DOCUMENT

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of minimum rental commitments under non-cancelable operating leases

We occupy various facilities and lease certain equipment under various lease agreements. The minimum rental commitments under non-cancelable operating leases, with lease terms in excess of one year subsequent to December 31, 2012, are as follows (in thousands):


2013	$	1,076
2014		1,047
2015		941
2016		941
2017		697
Thereafter		1,399

Summary of rent expenses relating to operating lease

Rental expenses for the years ended December 31 were as follows (in thousands):

		2012			2011			2010

Rent expense		$	3,103		$	1,369		$	1,158

Schedule of outstanding capital purchase commitments

As of December 31, we had outstanding capital purchase commitments which consisted of (in thousands):

	2012		2011

Capital commitments
Equipment	$	20,317	$	8,637
Land	$	23,700	$	23,700
Supplies and services
Coal purchase commitments	$	28,633	$	5,652
Transportation agreements	$	159,398	$	135,080
Materials and supplies	$	24,552	$	29,641

- Definition

Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.

+ References+ Details