Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Supplemental Equity and Accumulated Other Comprehensive Income (Loss) (Details Textual)

v3.19.3
Note 8 - Supplemental Equity and Accumulated Other Comprehensive Income (Loss) (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2020
Jun. 30, 2019
Jul. 01, 2018
Jun. 30, 2018
Common Stock, Dividends, Per Share, Declared $ 0.32 $ 0.32        
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent $ 0 $ 0        
Stockholders' Equity Attributable to Parent, Ending Balance 1,174,224 1,109,469   $ 1,165,589   $ 1,079,061
Cumulative Effect of New Accounting Principle in Period of Adoption       (879)   594
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]            
Stockholders' Equity Attributable to Parent, Ending Balance (10,041) [1] 0   (9,537)   0 [2]
AOCI Attributable to Parent [Member]            
Stockholders' Equity Attributable to Parent, Ending Balance $ (91,627) $ (70,632)   $ (83,521)   (44,814)
Cumulative Effect of New Accounting Principle in Period of Adoption           $ (24,682)
AOCI Attributable to Parent [Member] | Accounting Standards Update 2016-01 [Member]            
Cumulative Effect of New Accounting Principle in Period of Adoption         $ (24,682)  
AOCI Attributable to Parent [Member] | Accounting Standards Update 2018-02 [Member]            
Cumulative Effect of New Accounting Principle in Period of Adoption         $ (24,682)  
Forecast [Member]            
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent     $ 3,907      
[1] The gain (loss) on the forward starting interest rate swap will be reclassified into earnings beginning October 31, 2019. Approximately ($3,907) of the ($10,041) will be reclassified into earnings in the 12 months subsequent to September 30, 2019.
[2] As previously disclosed in our 10-K/A, unrealized gains of $24,682 on available-for-sale investments with readily determinable fair vales were included in the June 30, 2018 Consolidated Balance Sheet and were reclassified into retained earnings at the beginning of fiscal 2019 upon our adoption of ASU 2016-01 and ASU 2018-02. The amounts presented in accumulated other comprehensive income as of June 30, 2018 exclude these unrealized gains subsequently reclassified into retained earnings.