SUBSEQUENT EVENTS (Details) - Subsequent Event $ in Thousands	Oct. 01, 2018 USD ($)
Fourth Amended Credit Agreement
Subsequent Events
Maximum borrowing capacity	$ 190,000
Debt related fees	$ 808
Fourth Amended Credit Agreement \| Prime Rate
Subsequent Events
Accruing interest rate	1.00%
Fourth Amended Credit Agreement \| Prime Rate \| Minimum
Subsequent Events
Basis spread	0.50%
Fourth Amended Credit Agreement \| Prime Rate \| Maximum
Subsequent Events
Basis spread	1.50%
Fourth Amended Credit Agreement \| LIBOR
Subsequent Events
Accruing interest rate	2.00%
Fourth Amended Credit Agreement \| LIBOR \| Minimum
Subsequent Events
Basis spread	1.50%
Fourth Amended Credit Agreement \| LIBOR \| Maximum
Subsequent Events
Basis spread	2.50%
Fourth Amended Credit Agreement \| Term Loan One
Subsequent Events
Loan commitment	$ 75,000
Fourth Amended Credit Agreement \| Term Loan Two
Subsequent Events
Loan commitment	80,000
Fourth Amended Credit Agreement \| Revolving credit facility
Subsequent Events
Maximum borrowing capacity	35,000
Crest Marine
Subsequent Events
Purchase price	$ 80,000

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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