Long-Term Debt Debt Extinguishment Costs (Details) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2016

Dec. 31, 2015

Dec. 31, 2014

Extinguishment of Debt [Line Items]

Redemption Premium

$ 0

$ 2,395

$ 33,971

Schedule of Debt Extinguishment Costs [Table Text Block]

Debt extinguishment costs are as follows for the years 2016, 2015 and 2014:

(In thousands)	2016		2015		2014
Early tender premiums	$	—	$	2,395	$	33,971
Write-offs of unamortized debt discount and issuance costs and fees	353		135		10,451
Total	$	353	$	2,530	$	44,422

Write off of unamortized debt discount and issuance costs

$ 353

135

10,451

Gains (Losses) on Extinguishment of Debt

$ (353)

$ (2,530)

$ (44,422)