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Retirement Plans, Multiemployer Pension Plan and Defined Contribution Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Retirement Plans [Abstract]
Aggregate contributions to the plans	$ 25,853,000	$ 25,514,000	$ 25,409,000
Seafarers Pension Trust [Member]
Retirement Plans [Abstract]
Pension contributions	541,000	$ 617,000
Contribution percentage to defined contribution plan		100.00%
Maximum contribution limit		5.00%
CPF [Member]
Retirement Plans [Abstract]
Pension contributions	$ 693,000	$ 691,000
Contribution percentage to defined contribution plan		98.00%

X

- Definition

Represents maximum entity's contribution limit to the concerned pension trust during the reporting period.

+ References

No definition available.

+ Details

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X

- Definition

Refers to the defined contribution plan contribution as a percentage of the aggregate accumulated benefit obligation during the period.

+ References

No definition available.

+ Details

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X

- References

No definition available.

+ Details

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X

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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- Definition

Amount of cost for defined contribution plan.

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- Details

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- Details

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