Shareholders' Equity	12 Months Ended
Dec. 31, 2019
Shareholders' Equity
Shareholders' Equity	Note 4. Shareholders’ Equity In 2010, the Company authorized 500,000,000 shares of Class A common stock, $0.01 par value per share, of which 113,350,267 and 110,949,850 shares were issued and outstanding as of December 31, 2019 and 2018, respectively. As of December 31, 2019 and 2018, the Company had authorized 10,000,000 shares of Class B Non-Voting common stock, $0.01 par value per share, of which no shares were outstanding as of December 31, 2019 and 2018. In November 2011, the Company issued $200.0 million in aggregate principal amount of 3.875% convertible senior notes due 2018 in an offering exempt from registration under the Securities Act. During the year ended December 31, 2018, $199.8 million in aggregate principal amount of the convertible notes were converted at a weighted average price of $29.22 per share, resulting in the issuance of 6,838,546 shares of our Class A Common Stock. The remaining $151,000 aggregate outstanding principal amount of the Convertible Notes matured on December 1, 2018. On June 4, 2010, the Company issued 482,625 warrants for the purchase of up to 482,625 shares of Class A common stock to two institutional investors (the “Committed Investors”). The warrants had a seven-year term and an exercise price of $20 per share. The Company used the BSM option pricing model to determine the fair value of warrants. The fair value of warrants was calculated on the date of grant by an option-pricing model using a number of complex and subjective variables. These variables include expected stock price volatility over the term of the warrant, projected exercise behavior, a risk-free interest rate, and expected dividends. The warrants had a fair value at the grant date of $5.6 million. The warrants are classified as an equity instrument and the proceeds from the issuance of common stock to the Committed Investors was split between the warrants and the stock based on fair value of the warrants and recorded as an increase to Paid-in capital on the Consolidated Balance Sheets. On March 9, 2017, a Committed Investor performed a cashless exercise of the remaining 268,125 warrants, resulting in the issuance of 131,001 shares of Class A common stock. As of December 31, 2019 and 2018, the Company did not have any warrants outstanding. The Company was authorized to issue 50,000,000 shares of preferred stock, $0.01 par value, at December 31, 2019 and December 31, 2018. On March 5, 2019, the Company issued 10,000,000 shares of 6.150% Fixed-to-Floating Non-Cumulative Perpetual Preferred Stock, Series A (the "Series A Preferred Stock"), $0.01 par value, with a liquidation preference of $25.00 per share. The Company will pay dividends on the Series A Preferred Stock only when, as and if declared by the board of directors. Dividends will accrue, on a non-cumulative basis, on the stated amount of $25.00 per share at a rate per annum equal to: (i) 6.150% during the first five years and payable quarterly in arrears beginning on June 15, 2019, and (ii) three-month LIBOR plus a spread of 3.650% per annum from March 15, 2024, reset quarterly and payable quarterly in arrears beginning on June 15, 2024. The Company may redeem shares of the Series A Preferred Stock at its option, in whole or in part, from time to time, on or after March 15, 2024, for cash at a redemption price equal to $25.00 per share, plus any declared and unpaid dividends to, but excluding, the redemption date, without accumulation of any undeclared dividends. The Company may also redeem shares of the Series A Preferred Stock at the Company's option under certain other limited conditions. As of December 31, 2019, the Company had 10,000,000 shares of preferred stock issued and outstanding with an aggregate liquidation preference of $250.0 million. The Company did not have any shares of preferred stock issued or outstanding as of December 31, 2018. A cash dividend of $0.427083 per share of outstanding Series A Preferred Stock was paid on June 15, 2019. In addition, a cash dividend of $0.384375 per share of outstanding Series A Preferred Stock was paid on each of September 15, 2019 and December 15, 2019.

Shareholders' Equity

12 Months Ended

Dec. 31, 2019

Note 4. Shareholders’ Equity

In 2010, the Company authorized 500,000,000 shares of Class A common stock, $0.01 par value per share, of which 113,350,267 and 110,949,850 shares were issued and outstanding as of December 31, 2019 and 2018, respectively. As of December 31, 2019 and 2018, the Company had authorized 10,000,000 shares of Class B Non-Voting common stock, $0.01 par value per share, of which no shares were outstanding as of December 31, 2019 and 2018.

In November 2011, the Company issued $200.0 million in aggregate principal amount of 3.875% convertible senior notes due 2018 in an offering exempt from registration under the Securities Act. During the year ended December 31, 2018, $199.8 million in aggregate principal amount of the convertible notes were converted at a weighted average price of $29.22 per share, resulting in the issuance of 6,838,546 shares of our Class A Common Stock. The remaining $151,000 aggregate outstanding principal amount of the Convertible Notes matured on December 1, 2018.

On June 4, 2010, the Company issued 482,625 warrants for the purchase of up to 482,625 shares of Class A common stock to two institutional investors (the “Committed Investors”). The warrants had a seven-year term and an exercise price of $20 per share. The Company used the BSM option pricing model to determine the fair value of warrants. The fair value of warrants was calculated on the date of grant by an option-pricing model using a number of complex and subjective variables. These variables include expected stock price volatility over the term of the warrant, projected exercise behavior, a risk-free interest rate, and expected dividends. The warrants had a fair value at the grant date of $5.6 million. The warrants are classified as an equity instrument and the proceeds from the issuance of common stock to the Committed Investors was split between the warrants and the stock based on fair value of the warrants and recorded as an increase to Paid-in capital on the Consolidated Balance Sheets. On March 9, 2017, a Committed Investor performed a cashless exercise of the remaining 268,125 warrants, resulting in the issuance of 131,001 shares of Class A common stock. As of December 31, 2019 and 2018, the Company did not have any warrants outstanding.

The Company was authorized to issue 50,000,000 shares of preferred stock, $0.01 par value, at December 31, 2019 and December 31, 2018. On March 5, 2019, the Company issued 10,000,000 shares of 6.150% Fixed-to-Floating Non-Cumulative Perpetual Preferred Stock, Series A (the "Series A Preferred Stock"), $0.01 par value, with a liquidation preference of $25.00 per share. The Company will pay dividends on the Series A Preferred Stock only when, as and if declared by the board of directors. Dividends will accrue, on a non-cumulative basis, on the stated amount of $25.00 per share at a rate per annum equal to: (i) 6.150% during the first five years and payable quarterly in arrears beginning on June 15, 2019, and (ii) three-month LIBOR plus a spread of 3.650% per annum from March 15, 2024, reset quarterly and payable quarterly in arrears beginning on June 15, 2024.

The Company may redeem shares of the Series A Preferred Stock at its option, in whole or in part, from time to

time, on or after March 15, 2024, for cash at a redemption price equal to $25.00 per share, plus any declared and unpaid dividends to, but excluding, the redemption date, without accumulation of any undeclared dividends. The Company may also redeem shares of the Series A Preferred Stock at the Company's option under certain other limited conditions.

As of December 31, 2019, the Company had 10,000,000 shares of preferred stock issued and outstanding with an aggregate liquidation preference of $250.0 million. The Company did not have any shares of preferred stock issued or outstanding as of December 31, 2018.

A cash dividend of $0.427083 per share of outstanding Series A Preferred Stock was paid on June 15, 2019. In addition, a cash dividend of $0.384375 per share of outstanding Series A Preferred Stock was paid on each of September 15, 2019 and December 15, 2019.