PERPETUAL CARE TRUSTS - Aging of Unrealized Losses on Investments in Fixed Maturities and Equity Securities Held in Perpetual Care Trusts (Detail) - Variable Interest Entity, Primary Beneficiary - Perpetual care trusts - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	$ 147,829	$ 57,723
12 Months or more Fair Value	2,852	2,829
Total Fair Value	150,681	60,552
Less than 12 months Unrealized Losses	30,265	5,638
12 Months or more Unrealized Losses	556	144
Total Unrealized Losses	30,821	5,782
Fixed maturities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	533	754
12 Months or more Fair Value	2,834	2,829
Total Fair Value	3,367	3,583
Less than 12 months Unrealized Losses	1	50
12 Months or more Unrealized Losses	186	144
Total Unrealized Losses	187	194
Fixed maturities | U.S. governmental securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	122	291
12 Months or more Fair Value	998	942
Total Fair Value	1,120	1,233
Less than 12 months Unrealized Losses		4
12 Months or more Unrealized Losses	50	48
Total Unrealized Losses	50	52
Fixed maturities | Corporate debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	411	463
12 Months or more Fair Value	1,836	1,887
Total Fair Value	2,247	2,350
Less than 12 months Unrealized Losses	1	46
12 Months or more Unrealized Losses	136	96
Total Unrealized Losses	137	142
Mutual funds - debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	9,847	2,856
12 Months or more Fair Value	2
Total Fair Value	9,849	2,856
Less than 12 months Unrealized Losses	423	38
12 Months or more Unrealized Losses	145
Total Unrealized Losses	568	38
Mutual funds - equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	7,289	566
12 Months or more Fair Value	6
Total Fair Value	7,295	566
Less than 12 months Unrealized Losses	4,164	66
12 Months or more Unrealized Losses	204
Total Unrealized Losses	4,368	66
Other investment funds
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	106,608	53,426
Total Fair Value	106,608	53,426
Less than 12 months Unrealized Losses	14,000	5,472
Total Unrealized Losses	14,000	5,472
Equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	23,552	121
12 Months or more Fair Value	10
Total Fair Value	23,562	121
Less than 12 months Unrealized Losses	11,677	12
12 Months or more Unrealized Losses	21
Total Unrealized Losses	$ 11,698	$ 12