RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Related Party Transaction [Line Items]
Revenue from related parties	$ 0.9	$ 1.3	$ 2.6	$ 2.7
Accounts receivable	0.8		0.8		$ 1.0
InteliStaf [Member]
Related Party Transaction [Line Items]
Revenue from related parties	$ 4.5	2.9	$ 8.7	6.0
Joint venture, percent ownership	68.00%		68.00%
Receivable balance with joint venture	$ 1.0		$ 1.0		1.5
Payable balance with joint venture	0.3		0.3		$ 0.2
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Rent expense	$ 0.1	$ 0.1	$ 0.2	$ 0.2

Joint Venture, Percent Ownership

No definition available.

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- Definition

For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

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Amounts due from an entity in which the reporting entity shares joint control with another party or group, due within 1 year (or 1 business cycle).

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- Definition

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

+ References

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Cash payments to lessor's for use of assets under operating leases.

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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

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

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