SHARE-BASED COMPENSATION (Details) - USD ($)
$ / shares in Units, $ in Thousands |
3 Months Ended |
6 Months Ended |
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
| Additional Disclosures [Abstract] |
|
|
|
|
| Vested share-based awards withheld to satisfy income tax obligations (in shares) |
|
|
57,725
|
59,472
|
| Vested share-based awards withheld to satisfy income tax obligations |
|
|
$ 4,400
|
$ 2,600
|
| Compensation Expense [Abstract] |
|
|
|
|
| Share-based compensation expense |
$ 1,500
|
$ 1,400
|
3,180
|
2,903
|
| 401 (k) Profit Sharing Plan [Abstract] |
|
|
|
|
| Contribution to profit sharing plan |
$ 600
|
$ 400
|
$ 1,100
|
$ 800
|
| Restricted Stock [Member] |
|
|
|
|
| Number of Shares [Roll Forward] |
|
|
|
|
| Nonvested at beginning of period (in shares) |
|
|
371,689
|
|
| Granted (in shares) |
|
|
72,177
|
|
| Vested (in shares) |
|
|
(155,811)
|
|
| Forfeited (in shares) |
|
|
(4,108)
|
|
| Nonvested at end of period (in shares) |
283,947
|
|
283,947
|
|
| Weighted Average Grant-date Fair Value [Roll Forward] |
|
|
|
|
| Nonvested at beginning of period (in dollars per share) |
|
|
$ 40.45
|
|
| Granted (in dollars per share) |
|
|
80.21
|
|
| Vested (in dollars per share) |
|
|
38.51
|
|
| Forfeited (in dollars per share) |
|
|
39.37
|
|
| Nonvested at end of period (in dollars per share) |
$ 51.64
|
|
$ 51.64
|
|
| Compensation Expense [Abstract] |
|
|
|
|
| Unrecognized compensation expense |
$ 12,700
|
|
$ 12,700
|
|
| Unrecognized compensation expense, period for recognition |
|
|
33 months
|
|
| 2008 Director LTIP [Member] | Restricted Stock [Member] |
|
|
|
|
| Number of Shares [Roll Forward] |
|
|
|
|
| Granted (in shares) |
|
|
535
|
10,990
|
| 2017 Director LTIP [Member] | Restricted Stock [Member] |
|
|
|
|
| Number of Shares [Roll Forward] |
|
|
|
|
| Granted (in shares) |
|
|
5,112
|
|
| 2012 Employee LTIP [Member] | Restricted Stock [Member] |
|
|
|
|
| Number of Shares [Roll Forward] |
|
|
|
|
| Granted (in shares) |
|
|
66,530
|
134,538
|
| Additional Disclosures [Abstract] |
|
|
|
|
| Vested share-based awards withheld to satisfy income tax obligations (in shares) |
|
|
57,725
|
|
| Vested share-based awards withheld to satisfy income tax obligations |
|
|
$ 4,100
|
|