NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounting Updates (Detail) $ in Millions	Dec. 31, 2018 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capitalized Costs Cloud Computing Arrangements	$ 0.2
Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ROU assets and lease liabilities for operating leases	55.0
Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ROU assets and lease liabilities for operating leases	$ 65.0