SUMMARY OF ACCOUNTING POLICIES - Property and Equipment, Net (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Mar. 31, 2019 |
Mar. 31, 2018 |
Mar. 31, 2017 |
| Property, Plant and Equipment |
|
|
|
| Property and equipment, gross |
$ 5,785,590
|
$ 5,497,469
|
|
| Accumulated depreciation and amortization |
(3,449,377)
|
(3,257,963)
|
|
| Property and equipment, net |
2,336,213
|
2,239,506
|
|
| Depreciation |
433,413
|
434,432
|
$ 432,238
|
| Machinery and Equipment |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Property and equipment, gross |
$ 3,305,335
|
3,004,707
|
|
| Machinery and Equipment | Minimum |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Depreciable life (in years) |
3 years
|
|
|
| Machinery and Equipment | Maximum |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Depreciable life (in years) |
10 years
|
|
|
| Building |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Depreciable life (in years) |
30 years
|
|
|
| Property and equipment, gross |
$ 1,111,708
|
1,154,881
|
|
| Leasehold Improvements |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Property and equipment, gross |
$ 453,119
|
414,917
|
|
| Leasehold Improvements | Maximum |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Depreciable life (in years) |
30 years
|
|
|
| Furniture Fixtures Computer Equipment And Software |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Property and equipment, gross |
$ 501,994
|
482,248
|
|
| Furniture Fixtures Computer Equipment And Software | Minimum |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Depreciable life (in years) |
3 years
|
|
|
| Furniture Fixtures Computer Equipment And Software | Maximum |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Depreciable life (in years) |
7 years
|
|
|
| Land |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Property and equipment, gross |
$ 121,976
|
152,992
|
|
| Construction in Progress |
|
|
|
| Property, Plant and Equipment |
|
|
|
| Property and equipment, gross |
$ 291,458
|
$ 287,724
|
|