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EQUITY ARRANGEMENTS (Detail) |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
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May 15, 2023 $ / shares | Jun. 03, 2021 USD ($) $ / shares | Apr. 28, 2021 $ / shares | Jun. 09, 2020 $ / shares | May 15, 2020 $ / shares | Jun. 30, 2021 shares | May 31, 2020 USD ($) $ / shares shares | Feb. 29, 2020 $ / shares shares | Nov. 30, 2019 USD ($) $ / shares shares | Mar. 31, 2018 USD ($) $ / shares shares | May 31, 2017 USD ($) counterparty $ / shares shares | Mar. 31, 2015 USD ($) shares | Oct. 02, 2021 USD ($) $ / shares shares | Jul. 03, 2021 USD ($) $ / shares shares | Sep. 26, 2020 USD ($) | Jun. 27, 2020 USD ($) | Mar. 28, 2020 USD ($) | Oct. 02, 2021 USD ($) financial_institution $ / shares shares | Sep. 26, 2020 USD ($) | Apr. 03, 2021 USD ($) | [1] | Jan. 02, 2021 USD ($) shares | Nov. 07, 2019 $ / shares
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward share purchase contract (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 3,645,510 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward share purchase contract | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 350,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity units issued (in shares) | shares |  |  |  |  |  |  |  |  |  | 7,500,000 |  | 7,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional value of equity | $ |  |  |  |  |  |  |  |  |  | $ 750,000,000 |  | $ 750,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of forward purchase contract |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of convertible preferred stock (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 750,000 |  |  |  |  |  |  |  |  | 750,000 |  |  |  |  | 1,500,000 |  |
Preferred stock conversion rate |  |  |  |  |  |  |  |  |  | 5.2263 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 191.34 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beneficial ownership rate in one share |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for preferred stock | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |  | $ 0 |  |  |  |  |  | $ 750,000,000.0 |  | $ 0 |  |  |  |  |
Common shares issued upon conversion (in shares) | shares |  |  |  |  |  |  | 1,469,055 |  |  |  |  |  |  |  |  | 1,469,055 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beneficial conversion feature | $ | [1] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  | $ 0 |  |  |  |  |  |  |  |  |
Preferred stock, without par value | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 620,300,000 | [2] | $ 620,300,000 | $ 1,370,300,000 | [1] | 1,370,300,000 | [1] | 1,230,500,000 | [1] | $ 620,300,000 | [2] | $ 1,370,300,000 | [1] | $ 1,370,300,000 | $ 1,370,300,000 | [2] |
Debt Instrument, Convertible, Beneficial Conversion Feature | $ |  |  |  |  |  |  |  | $ 5,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beneficial conversion feature | $ | [1] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  | $ 500,000 |  |  |  |  |  |  |  |  |
Series D Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of convertible preferred stock (in shares) | shares |  |  |  |  |  |  |  |  |  | 750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, without par value | $ |  |  |  |  |  |  |  |  |  | $ 620,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series C Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, liquidation preference (in dollars per share) |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock conversion rate |  |  | 6.7548 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, redemption, price per share (in dollars per share) |  |  |  | $ 1,002.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, redemption price per share, percentage of liquidation preference |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for preferred stock | $ |  |  | $ 750,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, redemption price per share before redemption date (in dollars per share) |  |  | $ 148.04 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, without par value | $ |  |  |  |  |  |  |  |  |  |  |  | $ 605,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 Equity Units and Capped call Transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forward share purchase contract (in shares) | shares |  |  |  |  |  |  |  |  |  | 4,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated value (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 100 |  |  |  | $ 159.33 |  |  |  |  |  |  |  |  | $ 159.33 |  |  |  |  |  |  | $ 159.45
Purchase price (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |
Percentage beneficial ownership |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, liquidation preference (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Approximate net proceeds | $ |  |  |  |  |  |  |  |  |  | $ 734,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of convertible preferred stock (in shares) | shares |  |  |  |  |  |  |  |  |  | 750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds used for capped call transactions | $ |  |  |  |  |  |  |  |  |  | $ 19,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock conversion rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.2301 |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 191.20 |  |  |  |  |  |  |
Preferred stock redemption percentage |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum settlement rate (in shares) | shares |  |  |  |  |  |  |  |  |  | 0.6272 |  |  |  |  |  |  |  |  |  |  |  |  | 0.6276 |  |  |  |  |  |  |
Present value of contract adjustment payments | $ |  |  |  |  |  |  |  |  |  | $ 114,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of stock deliverable on early settlement of contract |  |  |  |  |  |  |  |  |  | 85.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 Equity Units and Capped call Transactions | 2019 Equity Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend rate per annum |  |  |  |  |  |  |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Present value of contract adjustment payments | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 47,800,000 |  |  |  |  |  |  |  |  | $ 47,800,000 |  |  |  |  |  |  |
Accretion of interest expense | $ |  |  |  |  |  |  |  |  |  | $ 1,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract term |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 Equity Units and Capped call Transactions | Series D Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend rate of preferred stock as a percentage |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds used for capped call transactions | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 19,200,000 |  |  |  |  |  |  |
Preferred stock conversion rate |  |  |  |  |  |  |  |  |  | 5.2263 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Upper strike percentage above closing price |  |  |  |  |  |  |  |  |  | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common shares purchased under call option (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,900,000 |  |  |  |  |  |  |
2019 Equity Units and Capped call Transactions | Series D Preferred Stock | 2019 Capped Call |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds used for capped call transactions | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 19,200,000 |  |  |  |  |  |  |
2019 Equity Units and Capped call Transactions | Series D Preferred Stock | Call Option |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Call option, average price (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4.90 |  |  |  |  |  |  |
2019 Equity Units and Capped call Transactions | Series D Preferred Stock | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 191.34 |  |  |  |  |  |  |  |  |  |  |  |  | 191.20 |  |  |  |  |  |  |
2019 Equity Units and Capped call Transactions | Series D Preferred Stock | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  |  |  |  |  |  | 207.29 |  |  |  |  |  |  |  |  |  |  |  |  | $ 207.13 |  |  |  |  |  |  |
2019 Equity Units and Capped call Transactions | 2022 Purchase Contract |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from settlement of forward stock purchases | $ |  |  |  |  |  |  |  |  |  | $ 750,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 Equity Units and Capped call Transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated value (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, liquidation preference (in dollars per share) |  |  |  |  |  | $ 1,000 |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of convertible preferred stock (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  | 750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend rate per annum |  |  |  |  |  |  |  | 5.375% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Present value of contract adjustment payments | $ |  |  |  |  |  |  |  | $ 117,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accretion of interest expense | $ |  |  |  |  |  |  |  | 1,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Call option, average price (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 5.43 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common shares purchased under call option (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  | 4,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance or sale of equity | $ |  |  |  |  |  |  |  | $ 750,000,000 |  |  |  | $ 727,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds used to enter into capped call transactions | $ |  |  |  |  |  |  |  |  |  |  |  | 25,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred dividend rate (in dollars per share) |  |  |  |  |  | $ 50.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued upon conversion (in shares) | shares |  |  |  |  |  |  |  | 0.7285 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion reference price (in dollars per share) |  |  |  |  |  |  |  | $ 137.26 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 Equity Units and Capped call Transactions | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, liquidation preference (in dollars per share) |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred dividend rate (in dollars per share) |  | $ 100.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 Equity Units and Capped call Transactions | Call Option |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds used to enter into capped call transactions | $ |  |  |  |  |  |  |  |  |  |  |  | $ 25,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 Equity Units and Capped call Transactions | Series C Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend rate of preferred stock as a percentage |  |  |  |  |  | 5.00% |  | 5.00% |  |  |  | 0.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, liquidation preference (in dollars per share) |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock conversion rate |  |  |  |  |  |  |  | 6.7352 |  |  |  | 6.1627 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  |  |  |  | $ 148.47 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of financial institutions | financial_institution |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |
Option term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |
Proceeds from issuance or sale of equity | $ |  |  |  |  |  |  |  | $ 750,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred dividend rate (in dollars per share) |  |  |  |  |  |  |  | $ 50.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common shares issued (in shares) | shares |  |  |  |  |  |  |  | 5,463,750 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of counterparties | counterparty |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Strike price as a percentage of closing stock price |  |  |  |  |  |  |  |  |  |  |  | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 Equity Units and Capped call Transactions | Series C Preferred Stock | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend rate of preferred stock as a percentage |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 Equity Units and Capped call Transactions | Series C Preferred Stock | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 162.27 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 Equity Units and Capped call Transactions | Series C Preferred Stock | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 179.53 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 Capped Call Transactions | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds used for capped call transactions | $ |  |  |  |  |  |  |  |  |  |  | $ 57,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option term |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common shares purchased under call option (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 3,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares settled (in shares) | shares |  |  |  |  |  |  |  |  | 600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares received on settlement (in shares) | shares |  |  |  |  |  |  |  |  | 61,767 |  |  |  |  |  |  | 344,004 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average reference price (in dollars per share) |  |  |  |  |  |  |  |  | $ 162.26 |  |  |  |  |  |  | $ 209.80 |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 Capped Call Transactions | Call Option | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Call option, average price (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 17.96 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 Capped Call Transactions | Maximum | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  | $ 165.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 Capped Call Transactions | Series C Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Strike price as a percentage of closing stock price |  |  |  |  | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 Capped Call Transactions | Series C Preferred Stock | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders Equity Note [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  |  |  |  | $ 148.34 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | See Note A, Significant Accounting Policies - Restatement, for discussion regarding the impacts of the Restatement.
[2] | See Note A, Significant Accounting Policies - Restatement, for discussion regarding the impacts of the Restatement.

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