Contingencies and Legacy Environmental Commitments (Tables)

3 Months Ended

Jun. 30, 2014

Schedule of Environmental Activity

The environmental activity is summarized as follows:

Balance at March 31, 2014	$	10,323
Environmental costs incurred		(262	)
Interest accretion		76
Reduction of environmental reserve-Part of Federal Labs site subject to the 2001 Consent Order		(412	)
Balance at June 30, 2014	$	9,725