Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands |
Total |
Common Stock |
Treasury Stock |
Additional Paid in Capital |
Retained Earnings (Accumulated Deficit) |
Accumulated Other Comprehensive Income (Loss) |
| Beginning Balance at Mar. 31, 2017 |
$ 452,071
|
$ 437
|
$ (46,763)
|
$ 565,962
|
$ (46,959)
|
$ (20,606)
|
| Beginning Balance (in shares) at Mar. 31, 2017 |
|
43,673,286
|
1,575,995
|
|
|
|
| Cumulative effect of adoption of new accounting standard |
77,081
|
|
|
1,835
|
75,246
|
|
| Restricted stock units issued |
|
$ 4
|
|
(4)
|
|
|
| Restricted stock units issued (in shares) |
|
371,940
|
|
|
|
|
| Stock options exercised |
9,303
|
$ 5
|
|
9,298
|
|
|
| Stock options exercised (in shares) |
|
459,777
|
|
|
|
|
| Stock issued under employee stock purchase plan |
2,394
|
|
|
2,394
|
|
|
| Stock issued under employee stock purchase plan (in shares) |
|
19,286
|
|
|
|
|
| Stock issued to directors |
67
|
|
|
67
|
|
|
| Stock issued to directors (in shares) |
|
365
|
|
|
|
|
| Return of common stock to pay withholding taxes on restricted stock |
(20,317)
|
$ (2)
|
$ (20,315)
|
|
|
|
| Return of common stock to pay withholding taxes on restricted stock (in shares) |
|
(149,317)
|
149,317
|
|
|
|
| Stock compensation expense |
40,353
|
|
|
40,353
|
|
|
| Other comprehensive income (loss) |
16,402
|
|
|
|
|
16,402
|
| Net income |
112,170
|
|
|
|
112,170
|
|
| Ending Balance at Mar. 31, 2018 |
689,524
|
$ 444
|
$ (67,078)
|
619,905
|
140,457
|
(4,204)
|
| Ending Balance (in shares) at Mar. 31, 2018 |
|
44,375,337
|
1,725,312
|
|
|
|
| Restricted stock units issued |
|
$ 4
|
|
(4)
|
|
|
| Restricted stock units issued (in shares) |
|
427,431
|
|
|
|
|
| Stock options exercised |
12,949
|
$ 5
|
|
12,944
|
|
|
| Stock options exercised (in shares) |
|
485,363
|
|
|
|
|
| Stock issued under employee stock purchase plan |
3,052
|
|
|
3,052
|
|
|
| Stock issued under employee stock purchase plan (in shares) |
|
12,467
|
|
|
|
|
| Stock issued to directors |
116
|
|
|
116
|
|
|
| Stock issued to directors (in shares) |
|
316
|
|
|
|
|
| Return of common stock to pay withholding taxes on restricted stock |
(71,776)
|
$ (2)
|
$ (71,774)
|
|
|
|
| Return of common stock to pay withholding taxes on restricted stock (in shares) |
|
(177,929)
|
177,929
|
|
|
|
| Stock compensation expense |
54,494
|
|
|
54,494
|
|
|
| Other comprehensive income (loss) |
(10,485)
|
|
|
|
|
(10,485)
|
| Net income |
259,016
|
|
|
|
259,016
|
|
| Ending Balance at Mar. 31, 2019 |
$ 936,890
|
$ 451
|
$ (138,852)
|
690,507
|
399,473
|
(14,689)
|
| Ending Balance (in shares) at Mar. 31, 2019 |
45,122,985
|
45,122,985
|
1,903,241
|
|
|
|
| Restricted stock units issued |
|
$ 4
|
|
(4)
|
|
|
| Restricted stock units issued (in shares) |
|
392,872
|
|
|
|
|
| Stock options exercised |
$ 3,748
|
$ 2
|
|
3,747
|
|
|
| Stock options exercised (in shares) |
85,000
|
85,136
|
|
|
|
|
| Stock issued under employee stock purchase plan |
$ 5,103
|
|
|
5,103
|
|
|
| Stock issued under employee stock purchase plan (in shares) |
|
37,827
|
|
|
|
|
| Return of common stock to pay withholding taxes on restricted stock |
(41,687)
|
$ (2)
|
$ (41,685)
|
|
|
|
| Return of common stock to pay withholding taxes on restricted stock (in shares) |
|
(164,446)
|
164,446
|
|
|
|
| Stock compensation expense |
39,781
|
|
|
39,781
|
|
|
| Stock repurchase program |
$ (84,879)
|
$ (5)
|
$ (84,874)
|
|
|
|
| Stock Repurchased During Period, Shares |
(465,687)
|
465,687
|
(465,687)
|
|
|
|
| Other comprehensive income (loss) |
$ 3,500
|
|
|
|
|
3,500
|
| Net income |
203,009
|
|
|
|
203,009
|
|
| Ending Balance at Mar. 31, 2020 |
$ 1,065,466
|
$ 451
|
$ (265,411)
|
$ 739,133
|
$ 602,482
|
$ (11,189)
|
| Ending Balance (in shares) at Mar. 31, 2020 |
45,008,687
|
45,008,687
|
2,533,374
|
|
|
|