Valuation and Qualifying Accounts (Text Block)

12 Months Ended

Dec. 31, 2016

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

VALUATION AND QUALIFYING ACCOUNTS

Description	Balance at Beginning of Period		Other Adjustments			Additions Charged to Costs and Expenses		Balance at End of Period, Noncurrent
	(in thousands)
Year ended December 31, 2016:
Deferred tax assets valuation allowance	$	235,339	$	(12,419	)	$	26,640	$	249,560
Year ended December 31, 2015:
Deferred tax assets valuation allowance	$	257,728	$	(62,791	)	$	40,402	$	235,339
Year ended December 31, 2014:
Deferred tax assets valuation allowance	$	162,588	$	(4,913	)	$	100,053	$	257,728