Segment Information (Revenues and Long-Lived Assets by Geographic Area) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total Consolidated Revenue	$ 283,111	$ 266,172	$ 551,352	$ 520,785
Total Consolidated Long-lived Assets	378,699	364,825	378,699	364,825
Operating Segments [Member] | Domestic Operations [Member]
Segment Reporting Information [Line Items]
Total Consolidated Revenue	176,911	160,410	349,556	312,445
Total Consolidated Long-lived Assets	215,797	200,257	215,797	200,257
Operating Segments [Member] | Barbados, St. Kitts, and St. Maarten
Segment Reporting Information [Line Items]
Total Consolidated Revenue	92,419	94,705	177,480	185,675
Total Consolidated Long-lived Assets	161,825	162,813	161,825	162,813
Operating Segments [Member] | Other International Operations [Member]
Segment Reporting Information [Line Items]
Total Consolidated Revenue	13,781	11,057	24,316	22,665
Total Consolidated Long-lived Assets	1,077	1,755	1,077	1,755
Operating Segments [Member] | International Operations [Member]
Segment Reporting Information [Line Items]
Total Consolidated Revenue	106,200	105,762	201,796	208,340
Total Consolidated Long-lived Assets	$ 162,902	$ 164,568	$ 162,902	$ 164,568