Commitments, Contingencies and Legal Proceedings (Tables)

3 Months Ended

Mar. 31, 2019

Commitments And Contingencies Disclosure [Abstract]

Schedule of Reserves

Reserves for the Site.  Our reserve for past and future government oversight costs and long-term monitoring and maintenance is set forth below:

	Three months ended March 31
In thousands		2019			2018
Balance at January 1,	$	45,001		$	43,144
Payments		(20,535	)		(2,536	)
Reserve adjustment		(2,509	)		—
Accretion		56			—
Balance at March 31,	$	22,013		$	40,608