LEASES AND RELATED PARTY LEASES - Future Minimum Lease Payment Under Operating Leases, After Adoption of 842 (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Operating Leased Assets [Line Items]
2019	$ 4,563
2020	13,585
2021	12,987
2022	13,937
2023	11,710
Thereafter	104,467
Total minimum lease payments	161,249
Less: Imputed interest	52,594
Total lease liabilities	108,655
Less: Current lease liabilities	11,835
Long-term lease liabilities	96,820
Related Parties
Operating Leased Assets [Line Items]
2019	74
2020	296
2021	296
2022	296
2023	296
Thereafter	1,724
Total minimum lease payments	2,982
Third Parties
Operating Leased Assets [Line Items]
2019	4,489
2020	13,289
2021	12,691
2022	13,641
2023	11,414
Thereafter	102,743
Total minimum lease payments	$ 158,267

Amount of lessee's undiscounted obligation for lease payments for operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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