SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of Risk by Risk Factor (Detail)
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12 Months Ended |
Dec. 31, 2017 |
Dec. 31, 2016 |
| Sales Revenue, Net |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
10.00%
|
|
| Rite Aid Corporation | Sales Revenue, Net |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
|
55.00%
|
| Rite Aid Corporation | Accounts Receivable |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
|
|
| Cardinal Health, Inc. | Sales Revenue, Net |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
|
13.00%
|
| Cardinal Health, Inc. | Accounts Receivable |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
|
19.00%
|
| AmerisourceBergen Corporation | Accounts Receivable |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
|
35.00%
|
| McKesson Corporation | Sales Revenue, Net |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
|
10.00%
|
| McKesson Corporation | Accounts Receivable |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
|
24.00%
|
| Kroger Foods | Accounts Receivable |
|
|
| Concentration Risk [Line Items] |
|
|
| Concentration Risk, Percentage |
|
18.00%
|