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- Definition

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No definition available.

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- Definition

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- Definition

Defined Benefit Plan, Contract Suspend or Transfer Period

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- Definition

Defined Benefit Plan, Distribution Completion, Extension Period

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- Definition

Defined Benefit Plan, Distribution Completion Period

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- Definition

Defined Benefit Plan, Holdback Percentage Withheld

+ References

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- Definition

Defined Benefit Plan, Loan Receivable Outstanding

+ References

No definition available.

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- Definition

Defined Benefit Plan, Lockup Period

+ References

No definition available.

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- Definition

Defined Benefit Plan, Master Fund Level, Percentage

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- Definition

Defined Benefit Plan, Periodic Percentage Of Fund Redemption, Maximum

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- Definition

Defined Benefit Plan, Redemption Notice Period

+ References

No definition available.

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- Definition

Fair Value, Investments, Entities That Calculate Net Asset Value, Commitment Funded

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No definition available.

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- Definition

Fair Value, Investments, Entities That Calculate Net Asset Value, Committed Capital

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No definition available.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

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- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

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.

+ References

No definition available.

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- Definition

Notice period the entity is required to deliver before it can redeem an investment calculated using net asset value per share, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, investments calculated by per unit, per membership interest, other equity or ownership interest and alternative investments.

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- Definition

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).

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PENSION AND OTHER POST-RETIREMENT BENEFITS - Category, Fair Value, Redemption Frequency and Redemption Notice Period of Assets (Details) - Pension Benefits $ in Thousands				12 Months Ended
	Dec. 18, 2018 USD ($)	May 21, 2018 USD ($)	Dec. 29, 2017 USD ($)	Dec. 31, 2018 USD ($) extension	Dec. 31, 2017 USD ($) extension	Oct. 31, 2018 USD ($)	Dec. 31, 2016 USD ($)	Dec. 15, 2016 USD ($)	Sep. 08, 2016 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Unfunded commitments				$ 10,000
HNH Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				308,489	$ 349,819		$ 331,872
HNH Plans \| Global long short feeder fund \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				9,499	11,416
Unfunded commitments				0	0
HNH Plans \| US long small cap value hedge fund \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				9,775	10,003
Unfunded commitments				$ 0	$ 0
Redemption Notice Period				90 days	90 days
Withdrawal percentage				25.00%	25.00%
HNH Plans \| International equity long/short hedge fund \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 11,680	$ 11,504
Unfunded commitments				$ 0	$ 0
Redemption Notice Period				90 days	90 days
Lockup period				36 months	36 months
Holdback percentage withheld				10.00%	10.00%
HNH Plans \| Multi-strategy hedge fund \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 3,630	$ 1,756
Unfunded commitments				$ 1,750	$ 3,250
Contract commitment period				4 years	4 years
Capital committed				$ 5,000	$ 5,000
Number of extensions \| extension				2	2
Distribution completion, extension period				1 year	1 year
HNH Plans \| Value driven hedge funds \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 18,995	$ 19,960
Unfunded commitments				$ 0	$ 0
Redemption Notice Period				6 months	6 months
Lockup period				5 years	5 years
HNH Plans \| International large cap \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Redemption Notice Period				90 days	90 days
Lockup period				3 years	3 years
Redemption fee percentage				5.00%	5.00%
Contract commitment period				3 years	3 years
Withdrawal percentage				20.00%	10.00%
Redemption notice period				30 days	30 days
HNH Plans \| International large cap \| Long-term capital growth
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 14,945	$ 12,517
Unfunded commitments				$ 22,222	$ 23,958
Redemption Notice Period				95 days	95 days
Lockup period				5 years	5 years
Contract commitment period				3 years	3 years
Holdback percentage withheld				10.00%	10.00%
Number of extensions \| extension				2	2
Contract extension period					1 year
HNH Plans \| Equity long/short hedge funds \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 10,507	$ 10,468
Unfunded commitments				$ 0	$ 0
Redemption Notice Period				60 days	60 days
Lockup period				3 years	3 years
Holdback percentage withheld				10.00%	10.00%
HNH Plans \| Event driven hedge funds \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 27,028	$ 49,757
Unfunded commitments				$ 0	$ 0
Redemption Notice Period				90 days	90 days
HNH Plans \| Collective equity investment funds \| Common trust funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets					$ 3
Unfunded commitments					0
HNH Plans \| Insurance separate account \| Insurance separate account
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 12,328	15,009
Unfunded commitments				$ 0	$ 0
Contract suspend or transfer period				30 days	30 days
HNH Plans \| Asset-based lending-maritime \| Private equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 9,498	$ 8,466
Unfunded commitments				$ 51	$ 1,444			$ 10,000
Contract commitment period				3 years	3 years
Distribution completion, extension period				2 years	2 years
Contract extension period				1 year	1 year
Distribution completion period				8 years	8 years
HNH Plans \| Value oriented partnership investment fund \| Private equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 4,102	$ 0
Unfunded commitments				$ 8,500	$ 12,500				$ 12,500
Contract extension period				1 year	1 year
Distribution completion period				10 years	10 years
Loan receivable outstanding				$ 3,505	$ 3,000
Capital call				4,000
HNH Plans \| Opportunistic long/short private investment fund \| Private equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets					0
Unfunded commitments					3,000
Capital committed					5,000
Capital call			$ 2,000
HNH Plans \| Pan-Asia equity long/short \| Offshore feeder fund
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				4,243	0
Unfunded commitments				$ 0	3,000
Redemption Notice Period				60 days
Withdrawal percentage				10.00%
Redemption notice period				60 days
Holdback percentage withheld				10.00%
Capital committed					$ 5,000
Capital call			$ 2,000
Master fund level percentage				25.00%
HNH Plans \| Equity long/short hedge funds \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 3,689
Unfunded commitments				$ 0
Redemption Notice Period				90 days
Withdrawal percentage				25.00%
HNH Plans \| Equity long/short hedge funds \| Hedge funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 1,997
Unfunded commitments		$ 2,000		$ 0
Redemption Notice Period				60 days
Lockup period		1 year
Holdback percentage withheld		10.00%
HNH Plans \| Revenue-based lending \| Private equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair value of plan assets				$ 0
Unfunded commitments				$ 7,750		$ 8,000
Number of extensions \| extension				2
Distribution completion, extension period				1 year
Capital call	$ 250
HNH Plans \| Minimum \| Collective equity investment funds \| Common trust funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Redemption Notice Period					0 days
HNH Plans \| Minimum \| Revenue-based lending \| Private equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contract commitment period				3 years
Distribution completion period				8 years
HNH Plans \| Maximum \| Collective equity investment funds \| Common trust funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Redemption Notice Period					2 days
HNH Plans \| Maximum \| Revenue-based lending \| Private equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contract commitment period				4 years
Distribution completion period				9 years