LONG-TERM DEBT - Senior Secured Credit Facility - Additional Information (Details) - USD ($)	Oct. 02, 2017	Oct. 01, 2018
Third Amended Credit Agreement
Long-term debt
Maximum borrowing capacity	$ 145,000
Third Amended Credit Agreement | Prime Rate | Minimum
Long-term debt
Variable margin rate	0.75%
Third Amended Credit Agreement | Prime Rate | Maximum
Long-term debt
Variable margin rate	1.75%
Third Amended Credit Agreement | LIBOR | Minimum
Long-term debt
Variable margin rate	1.75%
Third Amended Credit Agreement | LIBOR | Maximum
Long-term debt
Variable margin rate	2.75%
Third Amended Credit Agreement | Senior Secured Term Loan
Long-term debt
Loan commitment	$ 115,000
Third Amended Credit Agreement | Revolving Credit Facility
Long-term debt
Maximum borrowing capacity	$ 30,000
Fourth Amended Credit Agreement
Long-term debt
Maximum borrowing capacity		$ 190,000
Fourth Amended Credit Agreement | Revolving Credit Facility
Long-term debt
Maximum borrowing capacity		35,000
Fourth Amended Credit Agreement | Term Loan One
Long-term debt
Loan commitment		75,000
Fourth Amended Credit Agreement | Term Loan Two
Long-term debt
Loan commitment		$ 80,000