Discontinued Operations (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Jul. 31, 2016 USD ($) $ / shares	Dec. 31, 2016 USD ($) Installment	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Adjustable convertible equity right face amount	$ 30,000
Conversion period of stock conversion	24 months
Fair value of adjustable convertible equity right, excluding net working capital settlement		$ 2,700
Total fair value of adjustable convertible equity right recorded		5,700
Aggregate Carrying Amounts of Major Classes of Assets and Liabilities [Abstract]
Total liabilities		0	$ 75,644
Financial results included in losses from discontinued operations [Abstract]
Loss from discontinued operations, net of income tax benefit		(184,706)	(74,952)	$ (48,397)
TPHS Business [Member] | Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payment obligation included in accrued liabilities			21,690
Aggregate Carrying Amounts of Major Classes of Assets and Liabilities [Abstract]
Cash and cash equivalents			1,637
Accounts receivable, net			57,587
Prepaid expenses			2,545
Other current assets			2,722
Income taxes receivable			819
Deferred tax asset			492
Property and equipment, net			146,404
Other assets			10,705
Intangible assets, net			31,791
Total assets			254,702
Accounts payable			19,851
Accrued salaries and benefits			14,380
Accrued liabilities			21,690
Deferred revenue			6,931
Contract billings in excess of earned revenue			12,792
Total liabilities			75,644
Financial results included in losses from discontinued operations [Abstract]
Revenues		151,780	318,506	336,920
Cost of services		173,302	317,849	325,243
Selling, general & administrative expenses		18,594	32,928	33,434
Depreciation and amortization		27,207	42,986	46,343
Restructuring and related charges		8,626	14,395	0
Legal settlement charges		0	0	11,805
Equity in income (loss) from joint ventures		243	(20,229)	(637)
Pretax loss on discontinued operations		(75,706)	(109,881)	(80,542)
Pretax gain on sale of Navvis business		0	1,873	0
Pretax loss on sale of MeYou Health business		(4,826)	0	0
Pretax loss on sale of TPHS business		(202,095)	0	0
Total pretax loss on discontinued operations		(282,627)	(108,008)	(80,542)
Income tax benefit		(97,921)	(33,056)	(32,145)
Loss from discontinued operations, net of income tax benefit		(184,706)	(74,952)	(48,397)
Significant operating and investing non-cash items of the discontinued operations [Abstract]
Depreciation and amortization on discontinued operations		27,207	42,986	46,343
Capital expenditures on discontinued operations		10,258	29,984	38,669
Assets acquired through capital lease obligation		0	898	6,321
Share-based compensation on discontinued operations		$ 10,144	$ 3,404	$ 3,359
Sharecare [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase agreement value of negative cash flows during transition year	$ 25,000
Remaining payment obligation responsibility percentage		66.67%
Aggregate payments related to acquisition		$ 4,200
Payment obligation included in accrued liabilities		$ 3,300
Number of quarterly installments | Installment		5
Aggregate Carrying Amounts of Major Classes of Assets and Liabilities [Abstract]
Accrued liabilities		$ 3,300
Sharecare [Member] | Adjustable Convertible Equity Right [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reduction in face amount of adjustable convertible equity right	$ 20,000
Stock issued during period conversion of convertible securities conversion price (in dollars per share) | $ / shares	$ 249.87