Cost and Market Value Associated with Assets Held in Perpetual Care Trusts (Parenthetical) (Detail) - Perpetual care trusts - Variable Interest Entity, Primary Beneficiary $ in Millions	6 Months Ended
Jun. 30, 2016 USD ($) Extension
Schedule of Available-for-sale Securities [Line Items]
Number of potential lockup period extensions \| Extension	3
Lockup extension period	1 year
Unfunded commitments to private credit funds, callable at any time \| $	$ 50.1
Minimum
Schedule of Available-for-sale Securities [Line Items]
Fixed income funds and equity funds, redemption period	30 days
Private credit funds, lockup periods	6 years
Maximum
Schedule of Available-for-sale Securities [Line Items]
Fixed income funds and equity funds, redemption period	90 days
Private credit funds, lockup periods	10 years

Extension Period

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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258

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The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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