Discounted Closing Stock Price

No definition available.

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- Definition

Percentage of Closing Stock Price

+ References

No definition available.

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- Definition

Percentage of Shares Outstanding

+ References

No definition available.

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- Definition

The cash outflow to reacquire common stock during the period.

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- Definition

Amount of transactions with related party during the financial reporting period.

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

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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

Number of shares that have been repurchased during the period and are being held in treasury.

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RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Jun. 04, 2018	Oct. 22, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Shares repurchased (shares)					324,141	116,859
Purchase of company stock			$ 181,402	$ 0	$ 12,315	$ 4,600
KKR Consulting [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Cost incurred in related party transaction					1,600
Care Innovations [Member] \| Management [Member]
Related Party Transaction [Line Items]
Cost incurred in related party transaction					$ 1,500
Related party transaction, amount of transaction		$ 1,800
KKR Share Repurchase [Member]
Related Party Transaction [Line Items]
Shares repurchased (shares)	2,418,304
Percentage of Shares Outstanding	7.10%
Purchase of company stock	$ 181,400
Discounted Closing Stock Price	$ 73.96
Percentage of Closing Stock Price	96.00%
KKR Share Repurchase [Member] \| KKR Consulting [Member]
Related Party Transaction [Line Items]
Percentage of Shares Outstanding	14.20%