REVENUE RECOGNITION - Summary of Disaggregation of Revenue By Revenue Source and Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Mar. 19, 2019	Sep. 30, 2019	Sep. 30, 2020
Disaggregation Of Revenue [Line Items]
Total revenues	$ 1,789	$ 144,901	$ 118,452	$ 304,345	$ 117,094
Service [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	1,108	110,564	91,280	232,562	90,895
Service [Member] | Maritime [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	130	101,213	81,170	210,929	81,062
Service [Member] | Destination Resorts [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	978	9,351	10,110	21,633	9,833
Product [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	681	34,337	27,172	71,783	26,199
Product [Member] | Maritime [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	7	32,875	25,794	68,803	23,132
Product [Member] | Destination Resorts [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	111	602	633	1,259	988
Product [Member] | Timetospa.com [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	$ 563	$ 860	$ 745	$ 1,721	$ 2,079