Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2013

Asset Retirement Obligation [Abstract]

Estimated Asset Retirement Obligation Activity

	(In thousands)
Beginning asset retirement obligations	$	116,526
Additional liability incurred	103
Change in estimates	(92		)
Accretion expense	1,370
Asset retirement costs incurred	(556		)
Settlement of liability in excess of obligation recorded	56
Currency translation adjustment	(1,165		)
Ending asset retirement obligations	116,242
Less current portion	(577		)
Long-term asset retirement obligation	$	115,665