EXIT ACTIVITIES AND RESTRUCTURING - Schedule of Exit Activities and Restructuring Charges (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Reserve [Roll Forward]
Balance	$ 4,816	$ 4,703	$ 3,878
Initial Charges	3,484	3,359	3,568
Plan Adjustments	1,687	2,932	840
Cash Payments	(7,386)	(6,178)	(3,583)
Balance	2,601	4,816	4,703
Activity of 2018 Restructuring \| Real estate obligations
Restructuring Reserve [Roll Forward]
Balance	0
Initial Charges	3,484
Plan Adjustments	1,023
Cash Payments	(2,585)
Balance	1,922	0
Activity of 2017 Restructuring \| Real estate obligations
Restructuring Reserve [Roll Forward]
Balance	3,380	0
Initial Charges	0	3,359
Plan Adjustments	316	1,741
Cash Payments	(3,596)	(1,720)
Balance	100	3,380	0
Activity of 2016 Restructuring \| Real estate obligations
Restructuring Reserve [Roll Forward]
Balance	247	933	0
Initial Charges	0	0	1,082
Plan Adjustments	39	82	14
Cash Payments	(161)	(768)	(163)
Balance	125	247	933
Activity of 2016 Restructuring \| Service contracts
Restructuring Reserve [Roll Forward]
Balance		0	0
Initial Charges			42
Plan Adjustments			(21)
Cash Payments			(21)
Balance			0
Activity of 2016 Restructuring \| Severance
Restructuring Reserve [Roll Forward]
Balance	46	1,911	0
Initial Charges	0	0	2,444
Plan Adjustments	34	957	0
Cash Payments	(80)	(2,822)	(533)
Balance	0	46	1,911
Activity of 2015 Restructuring \| Real estate obligations
Restructuring Reserve [Roll Forward]
Balance	64	111	164
Initial Charges	0	0	0
Plan Adjustments	4	0	(13)
Cash Payments	(41)	(47)	(40)
Balance	27	64	111
Activity of 2015 Restructuring \| Service contracts
Restructuring Reserve [Roll Forward]
Balance	388	565	843
Initial Charges	0	0	0
Plan Adjustments	31	21	9
Cash Payments	(198)	(198)	(287)
Balance	221	388	565
Activity of 2014 Restructuring \| Real estate obligations
Restructuring Reserve [Roll Forward]
Balance	691	1,183	1,701
Initial Charges	0	0	0
Plan Adjustments	240	131	104
Cash Payments	(725)	(623)	(622)
Balance	$ 206	691	1,183
Activity of 2007 Restructuring
Restructuring Reserve [Roll Forward]
Balance		$ 0	1,170
Initial Charges			0
Plan Adjustments			747
Cash Payments			(1,917)
Balance			$ 0

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No definition available.

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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-Publisher FASB
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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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