Litigation, Commitments and Contingencies (Details) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Loss Contingency [Abstract]
Estimated recoverable amount	$ 418,031	$ 418,031	$ 392,436
Personnel Staffing Group d/b/a MVP Staffing [Member]
Loss Contingency [Abstract]
Per claim deductible amount		500
Damages sought		$ 0
Percentage of required collateral	110.00%	110.00%
Deductible receivables	$ 6,800	$ 6,800
Average monthly deductible invoices	1,600
Estimated recoverable amount	43,000	43,000
Personnel Staffing Group d/b/a MVP Staffing [Member] \| Minimum [Member]
Loss Contingency [Abstract]
Loss fund	$ 4,000	$ 4,000

Refers to the amount of average monthly deductible invoices.

No definition available.

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- Definition

Deductible receivables for open case reserves.

+ References

No definition available.

+ Details

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- Definition

The percentage of open case reserves required as collateral.

+ References

No definition available.

+ Details

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- Definition

The amount of a loss fund held for the payment of claims.

+ References

No definition available.

+ Details

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- Definition

The per claim deductible amount required for workers compensation insurance.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349

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- Definition

Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.(a),6)
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=99397103&loc=d3e6824-158387

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 310
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=99404803&loc=d3e21409-158489

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