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Note 7 - Supplemental Equity and Accumulated Other Comprehensive Income (Loss) - Consolidated Changes in Equity (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Mar. 31, 2019 | Mar. 31, 2018
Balance (in shares) |  |  | 37,607,500 |  |  |  | 37,607,500 |
Balance | $ 1,096,425 | $ 1,109,469 | $ 1,079,061 | $ 997,819 | $ 960,082 | $ 949,627 | $ 1,079,061 | $ 949,627
Cumulative effect adjustments due to adoption of new accounting standards |  |  | 98 |  |  |  | 98 |
Net earnings | 44,654 | 17,556 | 17,403 | 19,738 | 48,847 | 15,863 | 79,612 | 84,449
Other comprehensive income (loss) | 3,378 | (12,379) | (1,136) | 40,956 | (7,058) | (824) | $ (10,137) | $ 33,073
Share repurchases |  | (15,404) |  |  |  |  |  |
Surrender and retirement of stock to exercise options |  |  |  |  |  | 0 |  |
Common stock issued for exercise of options (in shares) |  |  |  |  |  |  | 263,995 | 139,602
Common stock issued for exercise of options | 7,337 | 2,408 | 15,611 | 6,273 | 2,893 | 3,051 |  |
Common stock issued for restricted stock awards |  |  | (1,909) |  |  | (227) |  |
Cash dividends | (12,086) | (12,086) | (12,066) | (11,992) | (11,988) | (11,958) |  |
Stock-based compensation expense | 5,640 | 6,784 | 11,327 | 4,669 | 4,985 | 3,718 |  |
Common stock issued to employee stock purchase plan | 834 |  | 842 | 752 |  | 755 |  |
Employee stock purchase plan expense | $ 84 | 77 | 238 | 78 | 59 | 77 |  |
Balance (in shares) | 37,813,367 |  |  |  |  |  | 37,813,367 |
Balance | $ 1,146,266 | $ 1,096,425 | $ 1,109,469 | $ 1,058,292 | $ 997,819 | $ 960,082 | $ 1,146,266 | $ 1,058,292
Common Stock [Member] |  |  |  |  |  |  |  |
Balance (in shares) | 37,735,000 | 37,803,000 | 37,608,000 | 37,470,000 | 37,409,000 | 37,356,000 | 37,608,000 | 37,356,000
Balance | $ 377 | $ 378 | $ 376 | $ 375 | $ 374 | $ 374 | $ 376 | $ 374
Cumulative effect adjustments due to adoption of new accounting standards |  |  |  |  |  |  |  |
Net earnings |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  |  |  |  |  |  |  |
Share repurchases |  | (1) |  |  |  |  |  |
Surrender and retirement of stock to exercise options |  |  |  |  |  |  |  |
Common stock issued for exercise of options (in shares) | 73,000 | 24,000 | 166,000 | 68,000 | 38,000 | 33,000 |  |
Common stock issued for exercise of options | $ 1 | $ 0 | $ 2 |  | $ 1 | $ 0 |  |
Common stock issued for restricted stock awards (in shares) | 1,000 | 3,000 | 24,000 |  | 22,000 | 13,000 |  |
Common stock issued for restricted stock awards | $ 0 | $ 0 | $ 0 |  | $ 0 | $ 0 |  |
Cash dividends |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |
Common stock issued to employee stock purchase plan (in shares) | 4,000 | 0 | 5,000 | 7,000 |  | 7,000 |  |
Common stock issued to employee stock purchase plan | $ 0 | $ 0 | $ 0 |  |  | $ 0 |  |
Employee stock purchase plan expense |  |  |  |  |  |  |  |
Share repurchases (in shares) |  | (95,000) |  |  |  |  |  |
Balance (in shares) | 37,813,000 | 37,735,000 | 37,803,000 | 37,545,000 | 37,470,000 | 37,409,000 | 37,813,000 | 37,545,000
Balance | $ 378 | $ 377 | $ 378 | $ 375 | $ 375 | $ 374 | $ 378 | $ 375
Additional Paid-in Capital [Member] |  |  |  |  |  |  |  |
Balance | 283,854 | 274,584 | 246,568 | 214,697 | 206,762 | 199,161 | 246,568 | 199,161
Cumulative effect adjustments due to adoption of new accounting standards |  |  |  |  |  |  |  |
Net earnings |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  |  |  |  |  |  |  |
Share repurchases |  |  |  |  |  |  |  |
Surrender and retirement of stock to exercise options |  |  |  |  |  |  |  |
Common stock issued for exercise of options | 7,336 | 2,408 | 15,609 | 6,273 | 2,892 | 3,051 |  |
Common stock issued for restricted stock awards |  |  |  |  |  |  |  |
Cash dividends |  |  |  |  |  |  |  |
Stock-based compensation expense | 5,640 | 6,784 | 11,327 | 4,669 | 4,985 | 3,718 |  |
Common stock issued to employee stock purchase plan | 834 |  | 842 | 752 |  | 755 |  |
Employee stock purchase plan expense | 84 | 77 | 238 | 78 | 59 | 77 |  |
Balance | 297,748 | 283,854 | 274,584 | 226,469 | 214,697 | 206,762 | 297,748 | 226,469
Retained Earnings [Member] |  |  |  |  |  |  |  |
Balance | 895,205 | 905,139 | 876,931 | 839,564 | 802,705 | 799,027 | 876,931 | 799,027
Cumulative effect adjustments due to adoption of new accounting standards |  |  | 24,780 |  |  |  | 24,780 |
Net earnings | 44,654 | 17,556 | 17,403 | 19,738 | 48,847 | 15,863 |  |
Other comprehensive income (loss) |  |  |  |  |  |  |  |
Share repurchases |  | (15,404) |  |  |  |  |  |
Surrender and retirement of stock to exercise options |  |  |  |  |  |  |  |
Common stock issued for exercise of options |  |  |  |  |  |  |  |
Common stock issued for restricted stock awards |  | 0 | (1,909) |  | 0 | (227) |  |
Cash dividends | (12,086) | (12,086) | (12,066) | (11,992) | (11,988) | (11,958) |  |
Stock-based compensation expense |  |  |  |  |  |  |  |
Common stock issued to employee stock purchase plan |  |  |  |  |  |  |  |
Employee stock purchase plan expense |  |  |  |  |  |  |  |
Balance | 927,773 | 895,205 | 905,139 | 847,310 | 839,564 | 802,705 | 927,773 | 847,310
AOCI Attributable to Parent [Member] |  |  |  |  |  |  |  |
Balance | (83,011) | (70,632) | (44,814) | (56,817) | (49,759) | (48,935) | (44,814) | (48,935)
Cumulative effect adjustments due to adoption of new accounting standards |  |  | (24,682) |  |  |  | (24,682) |
Net earnings |  |  |  |  |  |  |  |
Other comprehensive income (loss) | 3,378 | (12,379) | (1,136) | 40,956 | (7,058) | (824) |  |
Share repurchases |  |  |  |  |  |  |  |
Surrender and retirement of stock to exercise options |  |  |  |  |  |  |  |
Common stock issued for exercise of options |  |  |  |  |  |  |  |
Common stock issued for restricted stock awards |  |  |  |  |  |  |  |
Cash dividends |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  |  |  |
Common stock issued to employee stock purchase plan |  |  |  |  |  |  |  |
Employee stock purchase plan expense |  |  |  |  |  |  |  |
Balance | $ (79,633) | $ (83,011) | $ (70,632) | $ (15,862) | $ (56,817) | $ (49,759) | $ (79,633) | $ (15,862)

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