UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
REVENUES	$ 73,766	$ 57,401	$ 134,797	$ 108,355
COST OF REVENUES (exclusive of depreciation and amortization shown below)	45,889	39,349	90,287	76,444
SELLING, GENERAL AND ADMINISTRATIVE EXPENSE	23,301	11,156	44,232	21,603
RELATED-PARTY EXPENSE		120	119	279
DEPRECIATION AND AMORTIZATION	9,784	6,401	17,344	12,850
(LOSS) INCOME FROM OPERATIONS	(5,208)	375	(17,185)	(2,821)
OTHER EXPENSE
Other income (expense)	21,933	(1,228)	(7,897)	(1,179)
Interest expense—net	(5,260)	(1,181)	(7,853)	(2,460)
Total other expenses—net	16,673	(2,409)	(15,750)	(3,639)
INCOME (LOSS) BEFORE BENEFIT FROM INCOME TAXES	11,465	(2,034)	(32,935)	(6,460)
INCOME TAXES BENEFIT	(1,759)	(1,712)	(4,911)	(896)
NET INCOME (LOSS)	13,224	(322)	(28,024)	(5,564)
EQUITY ADJUSTMENT FROM FOREIGN CURRENCY TRANSLATION	(90)	23	(53)	23
COMPREHENSIVE LOSS	13,134	(299)	(28,077)	(5,541)
ACCRETION OF REDEEMABLE SERIES A-1 PREFERRED STOCK	(5,644)	(4,777)	(11,059)	(9,311)
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCKHOLDERS	$ 7,580	$ (5,099)	$ (39,083)	$ (14,875)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING— BASIC	10,649	8,647	9,718	8,602
NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO COMMON STOCKHOLDERS— BASIC	$ 0.71	$ (0.59)	$ (4.02)	$ (1.73)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING— DILUTED	19,139	8,647	9,718	8,602
NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO COMMON STOCKHOLDERS— DILUTED	$ 0.40	$ (0.59)	$ (4.02)	$ (1.73)