General - Going Concern (Details) - USD ($) $ in Thousands						3 Months Ended				6 Months Ended		12 Months Ended
	Jul. 22, 2020	Mar. 27, 2020	Mar. 23, 2020	Mar. 16, 2020	Jan. 10, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Aug. 07, 2020	May 18, 2020
Net loss						$ 48,691	$ 12,670	$ 41,571	$ 32,172	$ 61,360	$ 73,743		$ 509,100	$ 169,800
Impairment of goodwill and other intangible assets													349,600	48,100
Net cash used in operating activities										(23,116)	$ (14,838)		(63,900)	23,600
Working Capital Deficit						78,100				78,100			147,100	$ 123,500
Interest Paid on Long Term Debt													144,500
Accrued liability						58,500				58,500
Accumulated deficit						1,272,869				1,272,869			1,211,508
Cash and cash equivalents						86,470				86,470			$ 6,198		$ 42,000
Borrowing facility															$ 35,800
Cash Saving In Temporary Freeze Of Employee Related Cost			$ 23,400
Cash Saving Due To Refund Of Tax Relating To Aid Relief		$ 29,000
Forecast
Interest Paid on Long Term Debt												$ 144,500
A/R Facility
Minimum Liquidity						40,000				40,000
Amount of facility					$ 160,000
Facility term (years)					5 years
Credit Agreement
Minimum Liquidity						$ 35,000				35,000						$ 35,000
SourceHOV
Gain on sale of investments							35,300			$ 35,300
Membership interests				$ 40,000
Adjustment of purchase consideration				$ 2,000			$ 2,000
Disposed of by sale not discontinued operations | Phyisical Records Storage Business | Subsequent Events
Proceeds from sale of business	$ 12,300