Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2018

Accumulated Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Prior periods have not been restated to conform to the current presentation.

(in thousands)				Three months ended June 30, 2018
	Unrealized Gains (Losses) on Available-for-Sale Investments			Foreign Currency Translation Adjustments			Change in Fair Value of Debt Attributable to Instrument-Specific Credit Risk		Total Accumulated Other Comprehensive Income (Loss)
Balance at April 1, 2018	$	(891	)	$	(3,286	)	$	40,021	$	35,844
Other comprehensive (loss) income arising during the period	(72		)	—			778		706
Amounts reclassified from accumulated other comprehensive income (loss)	(4		)	—			—		(4		)
Net current-period other comprehensive (loss) income	(76		)	—			778		702
Balance at June 30, 2018	$	(967	)	$	(3,286	)	$	40,799	$	36,546

(in thousands)				Three months ended June 30, 2017
	Unrealized Gains (Losses) on Available-for-Sale Investments			Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at April 1, 2017	$	2,901		$	(3,780	)	$	(879	)
Other comprehensive loss arising during the period	(1,066		)	—			(1,066		)
Amounts reclassified from accumulated other comprehensive income (loss)	478			—			478
Net current-period other comprehensive loss	(588		)	—			(588		)
Balance at June 30, 2017	$	2,313		$	(3,780	)	$	(1,467	)

(in thousands)				Six months ended June 30, 2018
	Unrealized Gains (Losses) on Available-for-Sale Investments			Foreign Currency Translation Adjustments			Change in Fair Value of Debt Attributable to Instrument-Specific Credit Risk		Total Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2018	$	(566	)	$	(3,286	)	$	—	$	(3,852	)
Cumulative effect of adoption of ASU 2016-01	40			—			40,455		40,495
Balance at January 1, 2018, as adjusted	(526		)	(3,286		)	40,455		36,643
Other comprehensive (loss) income arising during the period	(430		)	—			344		(86		)
Amounts reclassified from accumulated other comprehensive income (loss)	(11		)	—			—		(11		)
Net current-period other comprehensive (loss) income	(441		)	—			344		(97		)
Balance at June 30, 2018	$	(967	)	$	(3,286	)	$	40,799	$	36,546

(in thousands)				Six months ended June 30, 2017
	Unrealized Gains (Losses) on Available-for-Sale Investments			Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at January 1, 2017	$	3,572		$	(3,780	)	$	(208	)
Other comprehensive loss arising during the period	(1,230		)	—			(1,230		)
Amounts reclassified from accumulated other comprehensive income (loss)	(29		)	—			(29		)
Net current-period other comprehensive loss	(1,259		)	—			(1,259		)
Balance at June 30, 2017	$	2,313		$	(3,780	)	$	(1,467	)

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

(in thousands)				Three months ended June 30, 2018
	Unrealized Gains (Losses) on Available-for-Sale Investments			Foreign Currency Translation Adjustments			Change in Fair Value of Debt Attributable to Instrument-Specific Credit Risk		Total Accumulated Other Comprehensive Income (Loss)
Balance at April 1, 2018	$	(891	)	$	(3,286	)	$	40,021	$	35,844
Other comprehensive (loss) income arising during the period	(72		)	—			778		706
Amounts reclassified from accumulated other comprehensive income (loss)	(4		)	—			—		(4		)
Net current-period other comprehensive (loss) income	(76		)	—			778		702
Balance at June 30, 2018	$	(967	)	$	(3,286	)	$	40,799	$	36,546

(in thousands)				Three months ended June 30, 2017
	Unrealized Gains (Losses) on Available-for-Sale Investments			Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at April 1, 2017	$	2,901		$	(3,780	)	$	(879	)
Other comprehensive loss arising during the period	(1,066		)	—			(1,066		)
Amounts reclassified from accumulated other comprehensive income (loss)	478			—			478
Net current-period other comprehensive loss	(588		)	—			(588		)
Balance at June 30, 2017	$	2,313		$	(3,780	)	$	(1,467	)

(in thousands)				Six months ended June 30, 2018
	Unrealized Gains (Losses) on Available-for-Sale Investments			Foreign Currency Translation Adjustments			Change in Fair Value of Debt Attributable to Instrument-Specific Credit Risk		Total Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2018	$	(566	)	$	(3,286	)	$	—	$	(3,852	)
Cumulative effect of adoption of ASU 2016-01	40			—			40,455		40,495
Balance at January 1, 2018, as adjusted	(526		)	(3,286		)	40,455		36,643
Other comprehensive (loss) income arising during the period	(430		)	—			344		(86		)
Amounts reclassified from accumulated other comprehensive income (loss)	(11		)	—			—		(11		)
Net current-period other comprehensive (loss) income	(441		)	—			344		(97		)
Balance at June 30, 2018	$	(967	)	$	(3,286	)	$	40,799	$	36,546

(in thousands)				Six months ended June 30, 2017
	Unrealized Gains (Losses) on Available-for-Sale Investments			Foreign Currency Translation Adjustments			Total Accumulated Other Comprehensive Loss
Balance at January 1, 2017	$	3,572		$	(3,780	)	$	(208	)
Other comprehensive loss arising during the period	(1,230		)	—			(1,230		)
Amounts reclassified from accumulated other comprehensive income (loss)	(29		)	—			(29		)
Net current-period other comprehensive loss	(1,259		)	—			(1,259		)
Balance at June 30, 2017	$	2,313		$	(3,780	)	$	(1,467	)

Components of accumulated other comprehensive income (loss) were reclassified to the following lines of the unaudited consolidated statements of operations for the three and six months ended June 30, 2018 and June 30, 2017:

(in thousands)	Three months ended June 30,						Six months ended June 30,
	2018			2017			2018		2017
Reclassification of accumulated other comprehensive income (loss) from unrealized gains (losses) on available-for-sale investments to:
Net realized gains	$	5		$	2		$	8	$	2
Other-than-temporary impairment loss	—			—			—		—
Loss from continuing operations before income tax expense	5			2			8		2
Income tax expense	—			—			—		—
Loss from continuing operations	5			2			8		2
Income (loss) from discontinued operations, net of taxes	(1		)	(480		)	3		27
Net loss	$	4		$	(478	)	$	11	$	29