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Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Total Accumulated Other Comprehensive (Loss) Earnings [Member] | Foreign Currency Translation Adjustments [Member] | Unrealized Derivative Gains (Losses) [Member] | Minimum Retirement Benefit Liability Adjustments [Member] | Deferred Compensation [Member] | Retained Earnings [Member] | Treasury Stock at Cost [Member] | Treasury Stock Held for Deferred Compensaton [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balances at Sep. 30, 2017 |  | $ 106 | $ 163,836 | $ (53,186) | $ (27,280) | $ 135 | $ (26,041) | $ 7,135 | $ 1,820,268 | $ (559,641) | $ (7,135) | $ 1,371,383
Balance, Preferred Stock, shares at Sep. 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Balance, Common Stock, shares at Sep. 30, 2017 |  | 72,960 |  |  |  |  |  |  |  |  |  |
Balance, Treasury Stock, shares at Sep. 30, 2017 |  |  |  |  |  |  |  |  |  | (11,739) |  |
Balance, Treasury stock held for deferred compensation, shares at Sep. 30, 2017 |  |  |  |  |  |  |  |  |  |  | (186) |
Net earnings |  |  |  |  |  |  |  |  | 56,749 |  |  | 56,749
Other comprehensive earnings (loss), net of tax |  |  |  | 12,465 | 12,413 | (23) | 75 |  |  |  |  | 12,465
Cash dividends paid |  |  |  |  |  |  |  |  | (16,422) |  |  | (16,422)
Sales of treasury stock |  |  | 171 |  |  |  |  |  |  | $ 3,389 |  | 3,560
Sales of treasury stock, shares |  |  |  |  |  |  |  |  |  | 97 |  |
Common shares issued from treasury stock for benefit plans |  |  | 7,157 |  |  |  |  |  |  | $ 7,584 |  | 14,741
Common shares issued from treasury stock for benefit plans, shares |  |  |  |  |  |  |  |  |  | 202 |  |
Stock-based compensation |  |  | 14,434 |  |  |  |  |  |  |  |  | 14,434
Purchases and transfers of stock by/to deferred compensation plan |  |  |  |  |  |  |  | 1,093 |  |  | $ (1,093) |
Purchases and transfer of stock by/to deferred compensation plan, shares |  |  |  |  |  |  |  |  |  |  | (14) |
Distribution of stock from deferred compensation plan |  |  |  |  |  |  |  | (6) |  |  | $ 6 |
Balances at Mar. 31, 2018 |  | $ 106 | 185,598 | (40,721) | (14,867) | 112 | (25,966) | 8,222 | 1,860,595 | $ (548,668) | $ (8,222) | 1,456,910
Balance, Preferred Stock, shares at Mar. 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Balance, Common Stock, shares at Mar. 31, 2018 |  | 72,960 |  |  |  |  |  |  |  |  |  |
Balance, Treasury Stock, shares at Mar. 31, 2018 |  |  |  |  |  |  |  |  |  | (11,440) |  |
Balance, Treasury stock held for deferred compensation, shares at Mar. 31, 2018 |  |  |  |  |  |  |  |  |  |  | (200) |
Balances at Dec. 31, 2017 |  | $ 106 | 176,473 | (48,439) | (22,733) | 124 | (25,830) | 8,173 | 1,830,872 | $ (558,466) | $ (8,173) | 1,400,546
Balance, Common Stock, shares at Dec. 31, 2017 |  | 72,960 |  |  |  |  |  |  |  |  |  |
Balance, Treasury Stock, shares at Dec. 31, 2017 |  |  |  |  |  |  |  |  |  | (11,706) |  |
Balance, Treasury stock held for deferred compensation, shares at Dec. 31, 2017 |  |  |  |  |  |  |  |  |  |  | (200) |
Net earnings |  |  |  |  |  |  |  |  | 38,489 |  |  | 38,489
Other comprehensive earnings (loss), net of tax |  |  |  | 7,718 | 7,866 | (12) | (136) |  |  |  |  | 7,718
Cash dividends paid |  |  |  |  |  |  |  |  | (8,766) |  |  | (8,766)
Sales of treasury stock |  |  | (43) |  |  |  |  |  |  | $ 2,214 |  | 2,171
Sales of treasury stock, shares |  |  |  |  |  |  |  |  |  | 64 |  |
Common shares issued from treasury stock for benefit plans |  |  | 7,157 |  |  |  |  |  |  | $ 7,584 |  | 14,741
Common shares issued from treasury stock for benefit plans, shares |  |  |  |  |  |  |  |  |  | 202 |  |
Stock-based compensation |  |  | 2,011 |  |  |  |  |  |  |  |  | 2,011
Purchases and transfers of stock by/to deferred compensation plan |  |  |  |  |  |  |  | 52 |  |  | $ (52) |
Distribution of stock from deferred compensation plan |  |  |  |  |  |  |  | (3) |  |  | 3 |
Balances at Mar. 31, 2018 |  | $ 106 | 185,598 | (40,721) | (14,867) | 112 | (25,966) | 8,222 | 1,860,595 | $ (548,668) | $ (8,222) | 1,456,910
Balance, Preferred Stock, shares at Mar. 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Balance, Common Stock, shares at Mar. 31, 2018 |  | 72,960 |  |  |  |  |  |  |  |  |  |
Balance, Treasury Stock, shares at Mar. 31, 2018 |  |  |  |  |  |  |  |  |  | (11,440) |  |
Balance, Treasury stock held for deferred compensation, shares at Mar. 31, 2018 |  |  |  |  |  |  |  |  |  |  | (200) |
Balances at Sep. 30, 2018 |  | $ 106 | 185,705 | (74,942) | (39,794) | (20,942) | (14,206) | 8,431 | 1,966,643 | $ (539,408) | $ (8,431) | $ 1,538,104
Balance, Preferred Stock, shares at Sep. 30, 2018 |  |  |  |  |  |  |  |  |  |  |  | 0
Balance, Common Stock, shares at Sep. 30, 2018 |  | 72,960 |  |  |  |  |  |  |  |  |  | 72,960
Balance, Treasury Stock, shares at Sep. 30, 2018 |  |  |  |  |  |  |  |  |  | (11,203) |  | (11,203)
Balance, Treasury stock held for deferred compensation, shares at Sep. 30, 2018 |  |  |  |  |  |  |  |  |  |  | (202) | (202)
Net earnings |  |  |  |  |  |  |  |  | 126,699 |  |  | $ 126,699
Other comprehensive earnings (loss), net of tax |  |  |  | 10,173 | 266 | 9,275 | 632 |  |  |  |  | 10,173
Cash dividends paid |  |  |  |  |  |  |  |  | (18,914) |  |  | (18,914)
Purchases of treasury stock |  |  |  |  |  |  |  |  |  | $ (43,253) |  | (43,253)
Purchases of treasury stock, shares |  |  |  |  |  |  |  |  |  | (457) |  |
Sales of treasury stock |  |  | (3,152) |  |  |  |  |  |  | $ 27,302 |  | 24,150
Sales of treasury stock, shares |  |  |  |  |  |  |  |  |  | 745 |  |
Common shares issued from treasury stock for benefit plans |  |  | 9,173 |  |  |  |  |  |  | $ 5,673 |  | 14,846
Common shares issued from treasury stock for benefit plans, shares |  |  |  |  |  |  |  |  |  | 158 |  |
Stock-based compensation |  |  | 13,166 |  |  |  |  |  |  |  |  | 13,166
Purchases and transfers of stock by/to deferred compensation plan |  |  |  |  |  |  |  | 625 |  |  | $ (625) |
Purchases and transfer of stock by/to deferred compensation plan, shares |  |  |  |  |  |  |  |  |  |  | (8) |
Distribution of stock from deferred compensation plan |  |  |  |  |  |  |  | (180) |  |  | $ 180 |
Distribution of stock from deferred compensation plan, shares |  |  |  |  |  |  |  |  |  |  | 4 |
Balances at Mar. 31, 2019 |  | $ 106 | 204,892 | (64,811) | (39,570) | (11,667) | (13,574) | 8,876 | 2,102,350 | $ (549,686) | $ (8,876) | $ 1,692,851
Balance, Preferred Stock, shares at Mar. 31, 2019 |  |  |  |  |  |  |  |  |  |  |  | 0
Balance, Common Stock, shares at Mar. 31, 2019 |  | 72,960 |  |  |  |  |  |  |  |  |  | 72,960
Balance, Treasury Stock, shares at Mar. 31, 2019 |  |  |  |  |  |  |  |  |  | (10,757) |  | (10,757)
Balance, Treasury stock held for deferred compensation, shares at Mar. 31, 2019 |  |  |  |  |  |  |  |  |  |  | (206) | (206)
Balances at Dec. 31, 2018 |  | $ 106 | 195,894 | (64,648) | (40,538) | (10,413) | (13,697) | 9,015 | 2,034,877 | $ (535,362) | $ (9,015) | $ 1,630,867
Balance, Common Stock, shares at Dec. 31, 2018 |  | 72,960 |  |  |  |  |  |  |  |  |  |
Balance, Treasury Stock, shares at Dec. 31, 2018 |  |  |  |  |  |  |  |  |  | (11,096) |  |
Balance, Treasury stock held for deferred compensation, shares at Dec. 31, 2018 |  |  |  |  |  |  |  |  |  |  | (209) |
Net earnings |  |  |  |  |  |  |  |  | 77,579 |  |  | 77,579
Other comprehensive earnings (loss), net of tax |  |  |  | (163) | 968 | (1,254) | 123 |  |  |  |  | (163)
Cash dividends paid |  |  |  |  |  |  |  |  | (10,106) |  |  | (10,106)
Purchases of treasury stock |  |  |  |  |  |  |  |  |  | $ (43,253) |  | (43,253)
Purchases of treasury stock, shares |  |  |  |  |  |  |  |  |  | (457) |  |
Sales of treasury stock |  |  | (2,489) |  |  |  |  |  |  | $ 23,256 |  | 20,767
Sales of treasury stock, shares |  |  |  |  |  |  |  |  |  | 638 |  |
Common shares issued from treasury stock for benefit plans |  |  | 9,173 |  |  |  |  |  |  | $ 5,673 |  | 14,846
Common shares issued from treasury stock for benefit plans, shares |  |  |  |  |  |  |  |  |  | 158 |  |
Stock-based compensation |  |  | 2,314 |  |  |  |  |  |  |  |  | 2,314
Purchases and transfers of stock by/to deferred compensation plan |  |  |  |  |  |  |  | 34 |  |  | $ (34) |
Distribution of stock from deferred compensation plan |  |  |  |  |  |  |  | (173) |  |  | $ 173 |
Distribution of stock from deferred compensation plan, shares |  |  |  |  |  |  |  |  |  |  | 3 |
Balances at Mar. 31, 2019 |  | $ 106 | $ 204,892 | (64,811) | (39,570) | $ (11,667) | $ (13,574) | $ 8,876 | 2,102,350 | $ (549,686) | $ (8,876) | $ 1,692,851
Balance, Preferred Stock, shares at Mar. 31, 2019 |  |  |  |  |  |  |  |  |  |  |  | 0
Balance, Common Stock, shares at Mar. 31, 2019 |  | 72,960 |  |  |  |  |  |  |  |  |  | 72,960
Balance, Treasury Stock, shares at Mar. 31, 2019 |  |  |  |  |  |  |  |  |  | (10,757) |  | (10,757)
Balance, Treasury stock held for deferred compensation, shares at Mar. 31, 2019 |  |  |  |  |  |  |  |  |  |  | (206) | (206)
Cumulative effect from adoption | ASC 606 [Member] |  |  |  | $ (42) | $ (42) |  |  |  | 28,927 |  |  | $ 28,885
Cumulative effect from adoption | ASU 2016-16 [Member] |  |  |  |  |  |  |  |  | $ (1,005) |  |  | $ (1,005)

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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Issuance of company stock from the deferred compensation plan, (a 'rabbi trust') set up specifically to accumulate stock or other investments for the purpose of deferring taxable income to participating employees until the stock or other investments are distributed to participating employees, to beneficiaries or for reinvestment in other investments within the deferred compensation plan. + References No definition available. + Details
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- Definition The number of shares of company stock issued from the deferred compensation plan, (a 'rabbi trust') set up specifically to accumulate stock or other investments for the purpose of deferring taxable income to participating employees until the stock or other investments are distributed to participating employees, to beneficiaries or for reinvestment in other investments within the deferred compensation plan. + References No definition available. + Details
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- Definition Purchase of company stock by the deferred compensation plan (and held in a rabbi trust) set up specifically to accumulate stock or other investments for the purpose of deferring taxable income to participating employees until the stock or other investments are distributed to participating employees. The purchase of stock by the deferred compensation plan results in an increase (or credit) to the component of the deferred compensation plan that resides in equity (which has a normal credit balance) as well as an increase (or debit) to the amount of treasury stock held for the deferred compensation plan (which has a normal debit balance). + References No definition available. + Details
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- Definition The number of shares of the company stock purchased in the period by the deferred compensation plan (and held in a rabbi trust) set up specifically to accumulate stock or other investments for the purpose of deferring taxable income to participating employees until the stock or other investments are distributed to participating employees. The purchase of stock by the deferred compensation plan results in an increase to the amount of treasury stock held for the deferred compensation plan as well as a decrease in the amount of treasury stock held by the company as shares purchased by the deferred compensation plan are issued from treasury stock. + References No definition available. + Details
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- Definition Number of shares of company stock, issued to a rabbi trust set up specifically to accumulate stock or other investments for the purpose of deferring taxable income to participating employees until the stock or other investments are distributed to the participating employees. + References No definition available. + Details
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