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, 2019	Dec. 31, 2018
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	$ 63,830	$ 125,431
12 Months or more Fair Value	4,272	7,089
Total Fair Value	68,102	132,520
Less than 12 months Unrealized Losses	4,479	5,370
12 Months or more Unrealized Losses	287	803
Total Unrealized Losses	4,766	6,173
Fixed maturities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	66	405
12 Months or more Fair Value	3,958	3,692
Total Fair Value	4,024	4,097
Less than 12 months Unrealized Losses	43	15
12 Months or more Unrealized Losses	267	427
Total Unrealized Losses	310	442
Fixed maturities | U.S. governmental securities
Investments, Unrealized Loss Position [Line Items]
12 Months or more Fair Value	1,327	790
Total Fair Value	1,327	790
12 Months or more Unrealized Losses	89	121
Total Unrealized Losses	89	121
Fixed maturities | Corporate debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	66	405
12 Months or more Fair Value	2,631	2,902
Total Fair Value	2,697	3,307
Less than 12 months Unrealized Losses	43	15
12 Months or more Unrealized Losses	178	306
Total Unrealized Losses	221	321
Mutual funds - debt securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	706	21,867
12 Months or more Fair Value	34	2,814
Total Fair Value	740	24,681
Less than 12 months Unrealized Losses	14	591
12 Months or more Unrealized Losses	1	246
Total Unrealized Losses	15	837
Mutual funds - equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	188	1,382
12 Months or more Fair Value	280
Total Fair Value	468	1,382
Less than 12 months Unrealized Losses	5	141
12 Months or more Unrealized Losses	19	1
Total Unrealized Losses	24	142
Other investment funds
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	60,385	101,536
Total Fair Value	60,385	101,536
Less than 12 months Unrealized Losses	4,313	4,607
Total Unrealized Losses	4,313	4,607
Equity securities
Investments, Unrealized Loss Position [Line Items]
Less than 12 months Fair Value	2,485	241
12 Months or more Fair Value		583
Total Fair Value	2,485	824
Less than 12 months Unrealized Losses	104	16
12 Months or more Unrealized Losses		129
Total Unrealized Losses	$ 104	$ 145