Basis of Presentation and Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2015

Summary of Significant Accounting Policies (Tables)

Inventories Table

	March 31, 2015		December 31, 2014
	(In Thousands)
Finished goods	$	63,563	$	62,188
Raw materials	3,656		5,005
Parts and supplies	53,400		51,229
Work in progress	79,216		70,722
Total inventories	$	199,835	$	189,144

Weighted Average Shares Outstanding Table

	Three Months Ended   March 31,
	2015	2014
	(In Thousands)
Number of weighted average common shares outstanding	78,907	78,306
Assumed exercise of stock awards	—	—
Average diluted shares outstanding	78,907	78,306

Services and Rentals Revenues Table

	Three Months Ended March 31,
	2015		2014
	(In Thousands)
Rental revenue	$	45,446	$	2,832
Cost of rental revenue	$	21,447	$	1,782

Fair Value Measurements on a Recurring Basis Table

				Fair Value Measurements Using
	Total as of			Quoted Prices in Active Markets for Identical Assets or Liabilities	Significant Other Observable Inputs		Significant Unobservable Inputs
Description	March 31, 2015			(Level 1)	(Level 2)		(Level 3)
	(In Thousands)
Asset for foreign currency derivative contracts	$	104		—	104		—
Liability for foreign currency derivative contracts	(213		)	—	(213	)	—
Acquisition contingent consideration liability	—			—	—		—
Net liability	$	(109	)