Employee Benefit Plans - Projected Annual Benefit Payment (Details)	Dec. 31, 2018 USD ($)
Retirement Benefits [Abstract]
2019	$ 0
2020	0
2021	13,351,000
2022	0
2023	0
2024-2027	0
Thereafter	$ 4,409,000

Defined benefit plan expected future benefit payments thereafter.

No definition available.

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- Definition

Defined Benefit Plan, Expected Future Benefit Payment, Years Six Through Ten

+ References

No definition available.

+ Details

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- References

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- Definition

Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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- Definition

Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

+ References

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- Definition

Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

+ References

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- Definition

Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

+ References

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- Definition

Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

+ References

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