Available-for-sale securities (Notes)

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

Available-for-Sale Securities

Available-for-sale securities are included in other assets in the accompanying Consolidated Balance Sheets, and consist of the following:

	September 30, 2015
(in thousands)	Amortized Cost		Gains in Accumulated Other Comprehensive Loss	Losses in Accumulated Other Comprehensive Loss		Estimated Fair Value
Certificates of deposit	$	1,750	1	—		1,751
Corporate bonds	6,156		—	(74	)	6,082
Total	$	7,906	1	(74	)	7,833

	September 30, 2014
(in thousands)	Amortized Cost		Gains in Accumulated Other Comprehensive Loss	Losses in Accumulated Other Comprehensive Loss	Estimated Fair Value
Common stock	$	14,350	4,809	—	19,159

Realized gains or losses on investments are recorded in our consolidated statements of operations within other income. Upon the sale of a security classified as available-for-sale, the security’s specific unrealized gain (loss) is reclassified out of accumulated other comprehensive loss into earnings based on the specific identification method. During the nine months ended September 30, 2015 and 2014, there were no reclassifications from accumulated other comprehensive loss into earnings.

The contractual maturities of available-for sale securities were as follows:

	September 30, 2015
(in thousands)	Less than 12 months		1-3 Years	Over 3 Years	Total
Certificates of deposit	$	1,751	—	—	1,751
Corporate bonds	453		4,122	1,507	6,082
Total	$	2,204	4,122	1,507	7,833