Discontinued Operations (Details) $ / shares in Units, $ in Thousands		3 Months Ended
	Jul. 31, 2016 USD ($) $ / shares	Mar. 31, 2017 USD ($) Installment	Mar. 31, 2016 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Adjustable convertible equity right, initial 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		5,400
Financial results included in losses from discontinued operations [Abstract]
Loss from discontinued operations, net of income tax benefit		(220)	$ (33,105)
TPHS Business [Member] | Discontinued Operations, Disposed of by Sale [Member]
Financial results included in losses from discontinued operations [Abstract]
Revenues		0	63,205
Cost of services		220	72,625
Selling, general & administrative expenses		137	7,061
Depreciation and amortization		0	10,874
Restructuring and related charges		0	5,702
Equity in income from joint ventures		0	132
Pretax loss on discontinued operations		(357)	(32,925)
Pretax loss on sale of TPHS business		(310)	0
Total pretax loss on discontinued operations		(667)	(32,925)
Income tax (benefit) expense		(447)	180
Loss from discontinued operations, net of income tax benefit		(220)	(33,105)
Significant operating and investing non-cash items of the discontinued operations [Abstract]
Depreciation and amortization on discontinued operations		0	10,874
Capital expenditures on discontinued operations		0	5,420
Share-based compensation on discontinued operations		$ 0	$ 768
Sharecare [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash paid to ShareCare at closing	$ 25,000
Remaining payment obligation responsibility percentage		66.70%
Contractual obligations in respect of purchase price to be paid in connection with Sharecare's acquisition of additional membership interest in Gallup Joint Venture		$ 4,200
Number of quarterly installments | Installment		5
Payment obligation included in accrued liabilities		$ 2,500
Sharecare [Member] | Adjustable Convertible Equity Right [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Maximum reduction in face amount of adjustable convertible equity right due to negative cash flows	20,000
Adjustable convertible equity right, face amount net of face value maximum negative cash flow adjustment	$ 10,000
Stock issued during period conversion of convertible securities, conversion price (in dollars per share) | $ / shares	$ 249.87