Note 18 - Equity-method Investments (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Equity Method Investment, Summarized Financial Information, Balance Sheet [Table Text Block]

December 31,	2016		2015
Carrying value, recorded as a component of other non-current assets	$	—	$	22,284
Present value of the obligation associated with future equity contributions, recorded as a component of accrued liabilities and other long-term liabilities		—		22,511

Equity Method Investment, Summarized Financial Information, Income Statement [Table Text Block]

Year Ended December 31,	2016		2015		2014
Asset impairments to write investment down to fair value	$	13,992	$	16,521	$	1,853
Our portion of the partnership’s operating losses		8,262		6,929		1,160
Non-cash interest expense related to the amortization of the discounted fair value of future equity contributions		185		674		152
Tax benefits and credits generated		28,530		30,832		6,506