Capitalization	9 Months Ended
Jun. 30, 2017
Capitalization, Long-term Debt and Equity [Abstract]
Capitalization	Capitalization Common Stock. During the nine months ended June 30, 2017, the Company issued 31,632 original issue shares of common stock as a result of stock option and SARs exercises, 79,530 original issue shares of common stock for restricted stock units that vested and 43,484 original issue shares of common stock for performance shares that vested. In addition, the Company issued 146,872 original issue shares of common stock for the Direct Stock Purchase and Dividend Reinvestment Plan and 78,327 original issue shares of common stock for the Company’s 401(k) plans. The Company also issued 17,017 original issue shares of common stock to the non-employee directors of the Company who receive compensation under the Company’s 2009 Non-Employee Director Equity Compensation Plan, as partial consideration for the directors’ services during the nine months ended June 30, 2017. Holders of stock options, SARs, restricted share awards or restricted stock units will often tender shares of common stock to the Company for payment of option exercise prices and/or applicable withholding taxes. During the nine months ended June 30, 2017, 47,785 shares of common stock were tendered to the Company for such purposes. The Company considers all shares tendered as cancelled shares restored to the status of authorized but unissued shares, in accordance with New Jersey law. Current Portion of Long-Term Debt. Current portion of Long-Term Debt at June 30, 2017 consists of $300.0 million of 6.50% notes that mature in April 2018.

Capitalization

Common Stock. During the nine months ended June 30, 2017, the Company issued 31,632 original issue shares of common stock as a result of stock option and SARs exercises, 79,530 original issue shares of common stock for restricted stock units that vested and 43,484 original issue shares of common stock for performance shares that vested. In addition, the Company issued 146,872 original issue shares of common stock for the Direct Stock Purchase and Dividend Reinvestment Plan and 78,327 original issue shares of common stock for the Company’s 401(k) plans. The Company also issued 17,017 original issue shares of common stock to the non-employee directors of the Company who receive compensation under the Company’s 2009 Non-Employee Director Equity Compensation Plan, as partial consideration for the directors’ services during the nine months ended June 30, 2017. Holders of stock options, SARs, restricted share awards or restricted stock units will often tender shares of common stock to the Company for payment of option exercise prices and/or applicable withholding taxes. During the nine months ended June 30, 2017, 47,785 shares of common stock were tendered to the Company for such purposes. The Company considers all shares tendered as cancelled shares restored to the status of authorized but unissued shares, in accordance with New Jersey law.

Current Portion of Long-Term Debt. Current portion of Long-Term Debt at June 30, 2017 consists of $300.0 million of 6.50% notes that mature in April 2018.