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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Retained Earnings/(Accumulated Deficit) | Treasury Stock | Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Jun. 30, 2019 |  |  | 90,619,000 |  |  |  |
Beginning balance at Jun. 30, 2019 |  | $ 262,455 | $ 906 | $ 138,378 | $ 200,446 | $ (77,275) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 61,098 |  |  | 61,098 |  |
Exercise of employee stock options (in shares) |  |  | 5,147,000 |  |  |  |
Exercise of employee stock options |  | 5,365 | $ 52 | 5,313 |  |  |
Dividends paid | [1] | (207,341) |  |  | (207,341) |  |
Dividends paid on unexercised stock options | [1] | (9,221) |  | (9,221) |  |  |
Return of capital |  | (58,438) |  | (58,438) |  |  |
Share-based compensation expense |  | 9,282 |  | 9,282 |  |  |
Treasury stock retired (in shares) |  |  | (3,520,000) |  |  |  |
Treasury stock retired |  | 195 | $ (36) |  | (77,044) | 77,275 |
Ending balance (in shares) at Mar. 31, 2020 |  |  | 92,246,000 |  |  |  |
Ending balance at Mar. 31, 2020 |  | 63,395 | $ 922 | 85,314 | (22,841) | 0 |
Beginning balance (in shares) at Dec. 31, 2019 |  |  | 95,270,000 |  |  |  |
Beginning balance at Dec. 31, 2019 |  | 38,919 | $ 953 | 84,754 | 30,487 | (77,275) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 23,716 |  |  | 23,716 |  |
Exercise of employee stock options (in shares) |  |  | 496,000 |  |  |  |
Exercise of employee stock options |  | 546 | $ 5 | 541 |  |  |
Share-based compensation expense |  | 19 |  | 19 |  |  |
Treasury stock retired (in shares) |  |  | (3,520,000) |  |  |  |
Treasury stock retired |  | 195 | $ (36) |  | (77,044) | 77,275 |
Ending balance (in shares) at Mar. 31, 2020 |  |  | 92,246,000 |  |  |  |
Ending balance at Mar. 31, 2020 |  | 63,395 | $ 922 | 85,314 | (22,841) | $ 0 |
Beginning balance (in shares) at Jun. 30, 2020 |  |  | 162,191,000 |  |  |  |
Beginning balance at Jun. 30, 2020 |  | 545,689 | $ 1,622 | 548,113 | (2,792) |  | $ (1,254)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 127,734 |  |  | 127,734 |  |
Gain on cash flow hedge, net of tax |  | 1,301 |  |  |  |  | 1,301
Net reclassification into earnings |  | $ 368 |  |  |  |  | 368
Exercise of employee stock options (in shares) |  | 1,598,824 | 1,135,000 |  |  |  |
Exercise of employee stock options |  | $ (9,233) | $ 11 | (9,244) |  |  |
Issuance of common stock pursuant to employee stock purchase plan (in shares) |  |  | 56,000 |  |  |  |
Issuance of common stock pursuant to employee stock purchase plan |  | 986 | $ 1 | 985 |  |  |
Share-based compensation expense |  | 3,670 |  | 3,670 |  |  |
Ending balance (in shares) at Mar. 31, 2021 |  |  | 163,382,000 |  |  |  |
Ending balance at Mar. 31, 2021 |  | 670,515 | $ 1,634 | 543,524 | 124,942 |  | 415
Beginning balance (in shares) at Dec. 31, 2020 |  |  | 162,774,000 |  |  |  |
Beginning balance at Dec. 31, 2020 |  | 634,135 | $ 1,628 | 545,441 | 88,461 |  | (1,395)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 36,481 |  |  | 36,481 |  |
Gain on cash flow hedge, net of tax |  | 1,675 |  |  |  |  | 1,675
Net reclassification into earnings |  | 135 |  |  |  |  | 135
Exercise of employee stock options (in shares) |  |  | 552,000 |  |  |  |
Exercise of employee stock options |  | (4,326) | $ 5 | (4,331) |  |  |
Issuance of common stock pursuant to employee stock purchase plan (in shares) |  |  | 56,000 |  |  |  |
Issuance of common stock pursuant to employee stock purchase plan |  | 986 | $ 1 | 985 |  |  |
Share-based compensation expense |  | 1,429 |  | 1,429 |  |  |
Ending balance (in shares) at Mar. 31, 2021 |  |  | 163,382,000 |  |  |  |
Ending balance at Mar. 31, 2021 |  | $ 670,515 | $ 1,634 | $ 543,524 | $ 124,942 |  | $ 415
[1] | (1) Dividends paid for common stock and unexercised stock options were $1.96 per share and $15.66 per share for preferred series A-D during the nine months ended March 31, 2020. Refer to Note 8 to the condensed consolidated financial statements for further details.

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