CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	HTA	EPC	Common Stock	Common Stock Platinum Stockholder	Common Stock HTA	Common Stock EPC	Common Stock Contingent Consideration	Common Stock Contingent Consideration Platinum Stockholder	Additional Paid-in Capital	Additional Paid-in Capital Platinum Stockholder	Additional Paid-in Capital HTA	Additional Paid-in Capital EPC	Retained Earnings (Deficit)	Accumulated Other Comprehensive Loss
Beginning Balance at Dec. 31, 2017	$ 147,264			$ 6						$ 129,020				$ 18,238
Beginning Balance (in shares) at Dec. 31, 2017				60,484
Net income (loss)	(22,158)													(22,158)
Stock issued in exchange for acquisition		$ 57,271				$ 1						$ 57,270
Stock issued in exchange for acquisition (in shares)						6,051
Ending Balance at Mar. 31, 2018	182,377			$ 7						186,290				(3,920)
Ending Balance (in shares) at Mar. 31, 2018				66,535
Beginning Balance at Dec. 31, 2017	147,264			$ 6						129,020				18,238
Beginning Balance (in shares) at Dec. 31, 2017				60,484
Net income (loss)	(20,440)
Ending Balance at Sep. 30, 2018	239,940			$ 8						246,574				(2,202)	$ (4,440)
Ending Balance (in shares) at Sep. 30, 2018				72,904
Beginning Balance at Mar. 31, 2018	182,377			$ 7						186,290				(3,920)
Beginning Balance (in shares) at Mar. 31, 2018				66,535
Net income (loss)	(4,795)													(4,795)
Stock issued in exchange for acquisition			$ 60,285				$ 1						$ 60,284
Stock issued in exchange for acquisition (in shares)							6,369
Other comprehensive income (loss)	(3,712)														(3,712)
Ending Balance at Jun. 30, 2018	234,155			$ 8						246,574				(8,715)	(3,712)
Ending Balance (in shares) at Jun. 30, 2018				72,904
Net income (loss)	6,513													6,513
Other comprehensive income (loss)	(728)														(728)
Ending Balance at Sep. 30, 2018	239,940			$ 8						246,574				(2,202)	(4,440)
Ending Balance (in shares) at Sep. 30, 2018				72,904
Beginning Balance at Dec. 31, 2018	302,056			$ 16				$ 73,150		348,017				(113,306)	(5,821)
Beginning Balance (in shares) at Dec. 31, 2018				156,057
Net income (loss)	2,820													2,820
Cumulative effect of adoption of the new revenue accounting standard	(257)													(257)
Adjustment to equity infusion from Gores	(6,205)									(6,205)
Adjustment to tax receivable agreement liability	2,940									2,940
Stock-based compensation	2,143									2,143
Other comprehensive income (loss)	1,324														1,324
Ending Balance at Mar. 31, 2019	304,821			$ 16				73,150		346,895				(110,743)	(4,497)
Ending Balance (in shares) at Mar. 31, 2019				156,057
Beginning Balance at Dec. 31, 2018	302,056			$ 16				73,150		348,017				(113,306)	(5,821)
Beginning Balance (in shares) at Dec. 31, 2018				156,057
Net income (loss)	24,163
Ending Balance at Sep. 30, 2019	327,591			$ 16				54,862		369,670				(89,400)	(7,557)
Ending Balance (in shares) at Sep. 30, 2019				158,610
Beginning Balance at Mar. 31, 2019	304,821			$ 16				73,150		346,895				(110,743)	(4,497)
Beginning Balance (in shares) at Mar. 31, 2019				156,057
Net income (loss)	3,591													3,591
Stock issued in exchange for acquisition									$ (18,288)		$ 18,288
Stock issued in exchange for acquisition (in shares)					2,500
Vesting of restricted stock units (in shares)				53
Stock-based compensation	2,812									2,812
Other comprehensive income (loss)	(1,396)														(1,396)
Ending Balance at Jun. 30, 2019	309,828			$ 16				54,862		367,995				(107,152)	(5,893)
Ending Balance (in shares) at Jun. 30, 2019				158,610
Net income (loss)	17,752													17,752
Adjustment to equity infusion from Gores	(796)									(796)
Stock-based compensation	2,471									2,471
Other comprehensive income (loss)	(1,664)														(1,664)
Ending Balance at Sep. 30, 2019	$ 327,591			$ 16				$ 54,862		$ 369,670				$ (89,400)	$ (7,557)
Ending Balance (in shares) at Sep. 30, 2019				158,610