Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

LONG-TERM DEBT - Senior Debt (Details)	3 Months Ended	12 Months Ended
LONG-TERM DEBT - Senior Debt (Details)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 03, 2017 USD ($)
Debt Instrument [Line Items]
Net loss on extinguishment of debt	$ 4,100,000	$ 2,046,000	$ 0	$ 4,135,000
Consolidated Leverage Ratio		2.5
Term Loan B
Debt Instrument [Line Items]
Credit Facility					$ 500,000,000
Senior Debt Obligations
Debt Instrument [Line Items]
Consolidated Leverage Ratio		4.0
Senior Debt Obligations \| Maximum
Debt Instrument [Line Items]
Consolidated Leverage Ratio		4.5