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	Dec. 31, 2019	Dec. 31, 2018
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	$ 57,723	$ 125,431
12 Months or more Fair Value	2,829	7,089
Total Fair Value	60,552	132,520
Less than 12 months Unrealized Losses	5,638	5,370
12 Months or more Unrealized Losses	144	803
Total Unrealized Losses	5,782	6,173
Fixed maturities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	754	405
12 Months or more Fair Value	2,829	3,692
Total Fair Value	3,583	4,097
Less than 12 months Unrealized Losses	50	15
12 Months or more Unrealized Losses	144	427
Total Unrealized Losses	194	442
Fixed maturities | U.S. governmental securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	291
12 Months or more Fair Value	942	790
Total Fair Value	1,233	790
Less than 12 months Unrealized Losses	4
12 Months or more Unrealized Losses	48	121
Total Unrealized Losses	52	121
Fixed maturities | Corporate debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	463	405
12 Months or more Fair Value	1,887	2,902
Total Fair Value	2,350	3,307
Less than 12 months Unrealized Losses	46	15
12 Months or more Unrealized Losses	96	306
Total Unrealized Losses	142	321
Mutual funds - debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	2,856	21,867
12 Months or more Fair Value		2,814
Total Fair Value	2,856	24,681
Less than 12 months Unrealized Losses	38	591
12 Months or more Unrealized Losses		246
Total Unrealized Losses	38	837
Mutual funds - equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	566	1,382
Total Fair Value	566	1,382
Less than 12 months Unrealized Losses	66	141
12 Months or more Unrealized Losses		1
Total Unrealized Losses	66	142
Other investment funds
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	53,426	101,536
Total Fair Value	53,426	101,536
Less than 12 months Unrealized Losses	5,472	4,607
Total Unrealized Losses	5,472	4,607
Equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	121	241
12 Months or more Fair Value		583
Total Fair Value	121	824
Less than 12 months Unrealized Losses	12	16
12 Months or more Unrealized Losses		129
Total Unrealized Losses	$ 12	$ 145