FAIR VALUE MEASUREMENT OF ASSETS AND LIABILITIES - Fair Value Hierarchy (Details) - Recurring Basis - USD ($)
$ in Thousands |
Mar. 31, 2019 |
Mar. 31, 2018 |
| Level 1 | Deferred compensation plan assets: Mutual funds, money market accounts and equity securities |
|
|
| Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis |
|
|
| Total Assets |
$ 2,845
|
$ 7,196
|
| Level 2 | Money market funds and time deposits |
|
|
| Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis |
|
|
| Total Assets |
473,888
|
452,622
|
| Level 2 | Foreign exchange forward contracts |
|
|
| Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis |
|
|
| Total Assets |
27,277
|
43,334
|
| Total Liabilities |
(27,426)
|
(25,311)
|
| Level 2 | Deferred compensation plan assets: Mutual funds, money market accounts and equity securities |
|
|
| Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis |
|
|
| Total Assets |
76,852
|
67,532
|
| Total | Money market funds and time deposits |
|
|
| Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis |
|
|
| Total Assets |
473,888
|
452,622
|
| Total | Foreign exchange forward contracts |
|
|
| Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis |
|
|
| Total Assets |
27,277
|
43,334
|
| Total Liabilities |
(27,426)
|
(25,311)
|
| Total | Deferred compensation plan assets: Mutual funds, money market accounts and equity securities |
|
|
| Financial Instruments Measured at Fair Value on a Recurring Basis and Nonrecurring Basis |
|
|
| Total Assets |
$ 79,697
|
$ 74,728
|