Condensed Consolidated Statement of Changes in Stockholders' Deficit - USD ($) $ in Thousands		Total	Groop	Convertible Preferred Stock		Convertible Preferred Stock Groop		Additional Paid-in Capital		Additional Paid-in Capital Groop	Accumulated Deficit	Accumulated Deficit Groop	Common stock		Common stock Groop
Beginning balance, value at Dec. 31, 2019	[1]			$ 111,282
Beginning balance, shares at Dec. 31, 2019	[1]			94,582,550
Beginning balance, value at Dec. 31, 2019		$ (79,599)						$ 6,818	[1]		$ (86,418)		$ 1	[1]
Beginning balance, shares at Dec. 31, 2019	[1]												13,223,673
Exercise of stock options	[1]			0									122,004
Exercise of stock options , Value		54		$ 0	[1]			54	[1]		0
Stock-based compensation		401		0	[1]			401	[1]		0		$ 0	[1]
Net loss		(7,900)		0	[1]			0	[1]		(7,900)		0	[1]
Ending balance, value at Mar. 31, 2020		(87,044)						7,273	[1]		(94,318)		$ 1	[1]
Ending balance, shares at Mar. 31, 2020	[1]												13,345,677
Ending balance, value at Mar. 31, 2020	[1]			$ 111,282
Ending balance, shares at Mar. 31, 2020	[1]			94,582,550
Beginning balance, value at Dec. 31, 2019	[1]			$ 111,282
Beginning balance, shares at Dec. 31, 2019	[1]			94,582,550
Beginning balance, value at Dec. 31, 2019		(79,599)						6,818	[1]		(86,418)		$ 1	[1]
Beginning balance, shares at Dec. 31, 2019	[1]												13,223,673
Net loss		(8,546)
Ending balance, value at Jun. 30, 2020		(87,350)						7,613	[1]		(94,964)		$ 1	[1]
Ending balance, shares at Jun. 30, 2020	[1]												13,375,193
Ending balance, value at Jun. 30, 2020	[1]			$ 111,282
Ending balance, shares at Jun. 30, 2020	[1]			94,582,550
Beginning balance, value at Mar. 31, 2020	[1]			$ 111,282
Beginning balance, shares at Mar. 31, 2020	[1]			94,582,550
Beginning balance, value at Mar. 31, 2020		(87,044)						7,273	[1]		(94,318)		$ 1	[1]
Beginning balance, shares at Mar. 31, 2020	[1]												13,345,677
Exercise of stock options	[1]			0									29,516
Exercise of stock options , Value		8		$ 0	[1]			8	[1]		0
Stock-based compensation		332		0	[1]			332	[1]		0		$ 0	[1]
Net loss		(646)		0	[1]			0	[1]		(646)		0	[1]
Ending balance, value at Jun. 30, 2020		(87,350)						7,613	[1]		(94,964)		$ 1	[1]
Ending balance, shares at Jun. 30, 2020	[1]												13,375,193
Ending balance, value at Jun. 30, 2020	[1]			$ 111,282
Ending balance, shares at Jun. 30, 2020	[1]			94,582,550
Beginning balance, value at Dec. 31, 2020	[1]			$ 111,282
Beginning balance, shares at Dec. 31, 2020	[1]			94,582,550
Beginning balance, value at Dec. 31, 2020		$ (98,898)						9,889			(108,788)		$ 1	[1]
Beginning balance, shares at Dec. 31, 2020		13,413,431											13,413,431	[1]
Exercise of stock options	[1]			0									684,923
Exercise of stock options , Value		$ 797		$ 0	[1]			797			0
Stock-based compensation		1,513		0	[1]			1,513			0		$ 0	[1]
Issuance of warrants		125		0	[1]			125			0		0	[1]
Net loss		(12,738)		0	[1]			0			(12,738)		0	[1]
Ending balance, value at Mar. 31, 2021		(109,201)						12,324			(121,526)		$ 1	[1]
Ending balance, shares at Mar. 31, 2021	[1]												14,098,354
Ending balance, value at Mar. 31, 2021	[1]			$ 111,282
Ending balance, shares at Mar. 31, 2021	[1]			94,582,550
Beginning balance, value at Dec. 31, 2020	[1]			$ 111,282
Beginning balance, shares at Dec. 31, 2020	[1]			94,582,550
Beginning balance, value at Dec. 31, 2020		$ (98,898)						9,889			(108,788)		$ 1	[1]
Beginning balance, shares at Dec. 31, 2020		13,413,431											13,413,431	[1]
Exercise of stock options	[2]	3,302,831
Net loss		$ (43,179)
Ending balance, value at Jun. 30, 2021		$ 202,261						354,213			(151,967)		$ 15	[1]
Ending balance, shares at Jun. 30, 2021		152,255,736											152,255,736	[1]
Ending balance, value at Jun. 30, 2021	[1]			$ 0
Ending balance, shares at Jun. 30, 2021	[1]			0
Beginning balance, value at Mar. 31, 2021	[1]			$ 111,282
Beginning balance, shares at Mar. 31, 2021	[1]			94,582,550
Beginning balance, value at Mar. 31, 2021		$ (109,201)						12,324			(121,526)		$ 1	[1]
Beginning balance, shares at Mar. 31, 2021	[1]												14,098,354
Common stock issued related to exercise of warrants, value		609		$ 0	[1]			609			0
Common stock issued related to exercise of warrants, shares	[1]			0									98,871
Stock Issued During Period, Shares, New Issues	[1]					0									40,858,053
Stock Issued During Period, Value, New Issues			$ 185,743			$ 0	[1]			$ 185,739		$ 0			$ 4	[1]
Exercise of stock options	[1]			0									2,617,908
Exercise of stock options , Value		1,128		$ 0	[1]			1,128			0
Stock-based compensation		15,196		$ 0	[1]			15,196			0		$ 0	[1]
Preferred stock conversion, Share	[1]			(94,582,550)									94,582,550
Preferred stock conversion, Value		111,282		$ (111,282)	[1]			111,272			0		$ 10	[1]
Issuance of warrants		27,945		0	[1]			27,945			0		0	[1]
Net loss		(30,441)		0	[1]			0			(30,441)		0	[1]
Ending balance, value at Jun. 30, 2021		$ 202,261						$ 354,213			$ (151,967)		$ 15	[1]
Ending balance, shares at Jun. 30, 2021		152,255,736											152,255,736	[1]
Ending balance, value at Jun. 30, 2021	[1]			$ 0
Ending balance, shares at Jun. 30, 2021	[1]			0

[1] (1) Prior period results have been adjusted to reflect the exchange of Old Talkspace’s common stock for Talkspace’s common stock at an exchange ratio of approximately 1.134140 in June 2021 as a result of the Business Combination. See Note 3, “Business Combination,” for further details.

[2] Number of options and the weighted average exercise price have been adjusted to reflect the exchange of Old Talkspace’s common stock for Talkspace’s common stock at an exchange ratio of approximately 1.134140 in June 2021 as a result of the Business Combination. See Note 3, “Business Combination,” for further details.