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DEBT, New Credit Agreement (Details) $ in Thousands |  | 6 Months Ended
--- | --- | ---
Apr. 18, 2018 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($)
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Proceeds from debt |  | $ 582,398 | $ 67,000
New Credit Agreement [Member] | Maximum [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Consolidated leverage ratio |  | 2.25 |
New Credit Agreement [Member] | Minimum [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Consolidated interest coverage ratio |  | 3.00 |
Term Loan Facility [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Original principal amount | $ 400,000 | $ 400,000 |
Term of loan |  | 5 years |
Frequency of payment |  | Quarterly |
Term Loan Facility [Member] | First Year [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Annual amortization percentage | 5.00% |  |
Term Loan Facility [Member] | Second Year [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Annual amortization percentage | 5.00% |  |
Term Loan Facility [Member] | Third Year [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Annual amortization percentage | 7.50% |  |
Term Loan Facility [Member] | Fourth Year [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Annual amortization percentage | 7.50% |  |
Term Loan Facility [Member] | Fifth Year [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Annual amortization percentage | 10.00% |  |
Term Loan Facility [Member] | LIBOR [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Basis spread on variable rate | 2.25% |  |
Revolving Credit Facility [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Borrowing capacity | $ 350,000 |  |
Term of loan |  | 5 years |
Proceeds from debt | $ 78,500 |  |
Revolving Credit Facility [Member] | LIBOR [Member] |  |  |
Long-term Debt, Current and Noncurrent [Abstract] |  |  |
Basis spread on variable rate | 2.25% |  |

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- Definition Consolidated interest coverage ratio that must be maintained under the Credit Agreement. + References No definition available. + Details
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- Definition Consolidated leverage ratio that must be maintained under the Credit Agreement. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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