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Consolidated Statements of Changes in Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Ordinary Shares | Additional Paid-in Capital | Treasury Stock | Accumulated Other Comprehensive (Loss) Income | [1] | Retained Earnings | Total Amdocs Limited Shareholders' Equity | Non-controlling Interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Sep. 30, 2015 | $ 3,406,842 | $ 4,331 | $ 3,182,573 | $ (3,611,105) | $ (16,753) | $ 3,847,796 | $ 3,406,842 |
Balance, Shares at Sep. 30, 2015 |  | 151,150 |  |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |  |
Net income | 409,331 |  |  |  |  | 409,331 | 409,331 |
Other comprehensive (loss) income | 22,848 |  |  |  | 22,848 |  | 22,848 |
Comprehensive income | 432,179 |  |  |  |  |  | 432,179 |
Employee stock options exercised | 89,767 | $ 39 | 89,728 |  |  |  | 89,767 |
Employee stock options exercised, Shares |  | 2,694 |  |  |  |  |  |
Repurchase of shares | (413,422) |  |  | (413,422) |  |  | (413,422) |
Repurchase of shares, Shares |  | (7,236) |  |  |  |  |  |
Tax benefit from equity-based awards | 7,788 |  | 7,788 |  |  |  | 7,788 |
Cash dividends declared | (112,300) |  |  |  |  | (112,300) | (112,300) |
Issuance of restricted stock, net of forfeitures | 7 | $ 7 |  |  |  |  | 7 |
Issuance of restricted stock, net of forfeitures, Shares |  | 526 |  |  |  |  |  |
Equity-based compensation expense related to employees | 42,700 |  | 42,700 |  |  |  | 42,700 |
Balance at Sep. 30, 2016 | 3,453,561 | $ 4,377 | 3,322,789 | (4,024,527) | 6,095 | 4,144,827 | 3,453,561 |
Balance, Shares at Sep. 30, 2016 |  | 147,134 |  |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |  |
Net income | 436,826 |  |  |  |  | 436,826 | 436,826 |
Other comprehensive (loss) income | 12,695 |  |  |  | 12,695 |  | 12,695 |
Comprehensive income | 449,521 |  |  |  |  |  | 449,521 |
Employee stock options exercised | 87,976 | $ 28 | 87,948 |  |  |  | 87,976 |
Employee stock options exercised, Shares |  | 2,220 |  |  |  |  |  |
Repurchase of shares | (340,597) |  |  | (340,597) |  |  | (340,597) |
Repurchase of shares, Shares |  | (5,519) |  |  |  |  |  |
Tax benefit from equity-based awards | 3,611 |  | 3,611 |  |  |  | 3,611 |
Cash dividends declared | (124,546) |  |  |  |  | (124,546) | (124,546) |
Issuance of restricted stock, net of forfeitures | 5 | $ 5 |  |  |  |  | 5 |
Issuance of restricted stock, net of forfeitures, Shares |  | 556 |  |  |  |  |  |
Equity-based compensation expense related to employees | 44,539 |  | 44,539 |  |  |  | 44,539 |
Balance at Sep. 30, 2017 | $ 3,574,070 | $ 4,410 | 3,458,887 | (4,365,124) | 18,790 | 4,457,107 | 3,574,070 |
Balance, Shares at Sep. 30, 2017 | 144,391 | 144,391 |  |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |  |
Net income | $ 354,396 |  |  |  |  | 354,396 | 354,396 |
Other comprehensive (loss) income | (51,521) |  |  |  | (51,521) |  | (51,521) |
Comprehensive income | 302,875 |  |  |  |  |  | 302,875 |
Employee stock options exercised | $ 81,286 | $ 24 | 81,262 |  |  |  | 81,286 |
Employee stock options exercised, Shares | 1,800 | 1,800 |  |  |  |  |  |
Repurchase of shares | $ (419,228) |  |  | (419,228) |  |  | (419,228) |
Repurchase of shares, Shares | (6,337) | (6,337) |  |  |  |  |  |
Cash dividends declared | $ (137,602) |  |  |  |  | (137,602) | (137,602) |
Issuance of restricted stock, net of forfeitures | 2 | $ 2 |  |  |  |  | 2 |
Issuance of restricted stock, net of forfeitures, Shares |  | 323 |  |  |  |  |  |
Equity-based compensation expense related to employees | 47,476 |  | 47,476 |  |  |  | 47,476 |
Contribution of Noncontrolling interests | 43,163 |  |  |  |  |  |  | $ 43,163
Balance at Sep. 30, 2018 | $ 3,492,042 | $ 4,436 | $ 3,587,625 | $ (4,784,352) | $ (32,731) | $ 4,673,901 | $ 3,448,879 | $ 43,163
Balance, Shares at Sep. 30, 2018 | 140,177 | 140,177 |  |  |  |  |  |
[1] | As of September 30, 2018, 2017 and 2016, accumulated other comprehensive(loss) income is comprised of unrealized (loss) gain on derivatives, net of tax, of $(26,608), $24,508 and $12,514 , unrealized (loss) gain on short-term interest-bearing investments, net of tax, of $(1,592), $(410) and $568 and unrealized (loss) on defined benefit plan, net of tax, of $(4,531), $(5,308) and $(6,987).

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