Equity Level 3 (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

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

Our components of Accumulated other comprehensive income are as follows:

	Foreign Currency Translation Adjustment			Unrealized Gains and Losses			Accumulated Other Comprehensive (Loss) Income
	(In thousands)
Balance at December 31, 2014	$	59,414		$	—		$	59,414
Activity in 2015	(53,250		)	—			(53,250		)
Net unrealized losses associated with available-for-sale securities of the trusts, net of taxes	—			(85,140		)	(85,140		)
Reclassification of net unrealized losses activity attributable to the Deferred receipts held in trust and Care trusts’ corpus, net of taxes	—			85,140			85,140
Balance at December 31, 2015	$	6,164		$	—		$	6,164
Activity in 2016	10,328			—			10,328
Net unrealized gains associated with available-for-sale securities of the trusts, net of taxes				120,573			120,573
Reclassification of net unrealized gains activity attributable to the Deferred receipts held in trust and Care trusts’ corpus, net of taxes	—			(120,573		)	(120,573		)
Balance at December 31, 2016	$	16,492		$	—		$	16,492
Activity in 2017	25,451			—			25,451
Net unrealized gains associated with available-for-sale securities of the trusts, net of taxes	—			243,677			243,677
Reclassification of net unrealized gains activity attributable to the Deferred receipts held in trust and Care trusts’ corpus, net of taxes	—			(243,677		)	(243,677		)
Balance at December 31, 2017	$	41,943		$	—		$	41,943