SUPPLEMENTAL CONSOLIDATED CASH FLOW INFORMATION - Schedule of Cash Flow, Supplemental Disclosures (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accounts Receivable
Pre-need/at-need contract originations (sales on credit)	$ (25,457)	$ (27,587)
Cash receipts from sales on credit (post-origination)	23,862	25,622
Changes in accounts receivable, net of allowance	(1,595)	(1,965)
Deferrals:
Cash receipts from customer deposits at origination, net of refunds	35,586	34,205
Withdrawals of realized income from merchandise trusts during the period	2,684	2,124
Pre-need/at-need contract originations (sales on credit)	25,457	27,587
Undistributed merchandise trust investment earnings, net	(1,595)	3,610
Recognition:
Merchandise trust investment income, net withdrawn as of end of period	(2,107)	(2,255)
Recognized maturities of customer contracts collected as of end of period	(45,989)	(46,131)
Recognized maturities of customer contracts uncollected as of end of period	(7,602)	(10,556)
Changes in customer contract liabilities	$ 6,434	$ 8,584