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Consolidated Statements Of Cash Flows (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Cash Flows [Abstract]
Non-cash net unrealized loss (gain) on investments, net of deferred tax provision (benefit)	$ 163	$ (17)
Adjustments to postretirement benefits obligation, net of deferred tax benefit	$ 0	$ 9

X

- Definition

Adjustments To Postretirement Benefits Obligation, Net Of Deferred Tax Benefit Provision

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No definition available.

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- Definition

The amount of deferred tax provision resulting from unrealized gains and losses during the period.

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No definition available.

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- References

No definition available.

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