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Note 8 - Supplemental Equity and Accumulated Other Comprehensive Income (Loss) - Consolidated Changes in Equity (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Mar. 31, 2020 | Mar. 31, 2019
Balance (in shares) |  |  |  | 37,934,040 |  |  |  |  | 37,934,040 |  |  |
Balance | $ 1,323,348 |  | $ 1,174,224 | $ 1,165,589 | $ 1,096,425 |  | $ 1,109,469 | $ 1,079,061 | $ 1,165,589 |  | $ 1,079,061 |
Net earnings | 36,432 |  | 119,622 | 14,398 | 44,654 |  | 17,556 | 17,403 | 170,451 |  | 79,612 |
Other comprehensive income (loss) | (25,105) |  | 13,275 | (8,106) | 3,378 |  | (12,379) | (1,136) | $ (19,936) |  | $ (10,137) |
Common stock issued for exercise of options (in shares) |  |  |  |  |  |  |  |  | 398,320 |  | 263,995 |
Common stock issued for exercise of options | 10,027 |  | 18,295 | 7,855 | 7,337 |  | 2,408 | 15,611 |  |  |  |
Common stock issued for restricted stock awards | (114) |  | 0 | (1,926) | 0 |  | 0 | (2,405) |  |  |  |
Cash dividends | (12,279) |  | (12,197) | (12,169) | (12,086) |  | 0 | (12,066) |  |  |  |
Stock-based compensation expense | 7,745 |  | 10,017 | 8,267 | 5,640 |  | 6,784 | 11,327 |  |  |  |
Common stock issued to employee stock purchase plan | 1,216 |  |  | 1,096 | 834 |  | 0 | 842 |  |  |  |
Employee stock purchase plan expense | 110 |  | 112 | 99 | 84 |  | 77 | 238 |  |  |  |
Share repurchases | $ (50,112) |  |  |  | 0 |  | (15,404) |  |  |  |  |
Balance (in shares) | 38,122,138 |  |  |  |  |  |  |  | 38,122,138 |  |  |
Balance | $ 1,291,268 |  | $ 1,323,348 | 1,174,224 | $ 1,146,266 |  | $ 1,096,425 | 1,109,469 | $ 1,291,268 |  | $ 1,146,266 |
Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  | $ (879) |  |  |  | $ 594 | $ (879) |  | $ 594 |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Balance (in shares) | 38,283,000 |  | 38,084,000 | 37,934,000 | 37,735,000 |  | 37,803,000 | 37,608,000 | 37,934,000 |  | 37,608,000 |
Balance | $ 383 |  | $ 381 | $ 379 | $ 377 |  | $ 378 | $ 376 | $ 379 |  | $ 376 |
Common stock issued for exercise of options (in shares) | 100,000 |  | 195,000 | 94,000 | 73,000 |  | 24,000 | 166,000 |  |  |  |
Common stock issued for exercise of options | $ 1 |  | $ 2 | $ 1 | $ 1 |  |  | $ 2 |  |  |  |
Common stock issued for restricted stock awards (in shares) | 1,000 |  | 4,000 | 50,000 | 1,000 |  | 3,000 | 24,000 |  |  |  |
Common stock issued for restricted stock awards | $ 0 |  | $ 0 | $ 0 | $ 0 |  | $ 0 | $ 0 |  |  |  |
Common stock issued to employee stock purchase plan (in shares) | 8,000 |  |  | 6,000 | 4,000 |  | 0 | 5,000 |  |  |  |
Common stock issued to employee stock purchase plan | $ 0 |  |  | $ 0 | $ 0 |  | $ 0 | $ 0 |  |  |  |
Share repurchases (in shares) | (279,000) |  |  |  |  |  | (95,000) |  |  |  |  |
Share repurchases | $ (3) |  |  |  |  |  | $ (1) |  |  |  |  |
Balance (in shares) | 38,112,000 |  | 38,283,000 | 38,084,000 | 37,813,000 |  | 37,735,000 | 37,803,000 | 38,112,000 |  | 37,813,000 |
Balance | $ 381 |  | $ 383 | $ 381 | $ 378 |  | $ 377 | $ 378 | $ 381 |  | $ 378 |
Additional Paid-in Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |
Balance | 362,534 |  | 334,112 | 316,797 | 283,854 |  | 274,584 | 246,568 | 316,797 |  | 246,568 |
Common stock issued for exercise of options | 10,026 |  | 18,293 | 7,854 | 7,336 |  | 2,408 | 15,609 |  |  |  |
Common stock issued for restricted stock awards | (0) |  | (0) | (0) |  |  |  |  |  |  |  |
Stock-based compensation expense | 7,745 |  | 10,017 | 8,267 | 5,640 |  | 6,784 | 11,327 |  |  |  |
Common stock issued to employee stock purchase plan | 1,216 |  |  | 1,096 | 834 |  |  | 842 |  |  |  |
Employee stock purchase plan expense | 110 |  | 112 | 99 | 84 |  | 77 | 238 |  |  |  |
Balance | 381,632 |  | 362,534 | 334,112 | 297,748 |  | 283,854 | 274,584 | 381,632 |  | 297,748 |
Retained Earnings [Member] |  |  |  |  |  |  |  |  |  |  |  |
Balance | 1,038,783 |  | 931,358 | 931,934 | 895,205 |  | 905,139 | 876,931 | 931,934 |  | 876,931 |
Net earnings | 36,432 |  | 119,622 | 14,398 | 44,654 |  | 17,556 | 17,403 |  |  |  |
Common stock issued for restricted stock awards | (114) |  |  | (1,926) |  |  |  | (2,405) |  |  |  |
Cash dividends | (12,279) |  | (12,197) | (12,169) | (12,086) |  | (12,086) | (12,066) |  |  |  |
Share repurchases | (50,109) |  |  |  |  |  | (15,404) |  |  |  |  |
Balance | 1,012,713 |  | 1,038,783 | 931,358 | 927,773 |  | 895,205 | 905,139 | 1,012,713 |  | 927,773 |
Retained Earnings [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  | (879) |  |  |  | 25,276 | (879) |  | 25,276 |
AOCI Attributable to Parent [Member] |  |  |  |  |  |  |  |  |  |  |  |
Balance | (78,352) |  | (91,627) | (83,521) | (83,011) |  | (70,632) | (44,814) | (83,521) |  | (44,814) |
Other comprehensive income (loss) | (25,105) |  | 13,275 | (8,106) | 3,378 |  | (12,379) | (1,136) |  |  |  |
Balance | $ (103,458) | [1],[2] | $ (78,352) | $ (91,627) | $ (79,633) | [1] | $ (83,011) | (70,632) | $ (103,458) | [1],[2] | (79,633) | [1]
AOCI Attributable to Parent [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Balance |  |  |  |  |  |  |  | $ (24,682) |  |  | $ (24,682) |
[1] | The Company reclassified ($2,102) to interest expense and a related tax benefit tax of $488 during the nine months ended March 31, 2020. The Company had deferred tax benefits of $4,390 and $1,792 included in the accumulated other comprehensive income loss as of March 31, 2020 and March 31, 2019, respectively.
[2] | The gain (loss) on the interest rate swap will be reclassified into interest expense as payments on the derivative agreement are made. Approximately ($7,487) of the ($14,336) will be reclassified into earnings in the 12 months subsequent to March 31, 2020.

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