Equity	12 Months Ended
Dec. 31, 2017
Equity
Equity	(10) Equity Common Stock Repurchase On September 27, 2012, the Company announced that its Board of Directors authorized a plan to repurchase up to $100.0 million of its common stock over the next 5 years. The Board of Directors reaffirmed the repurchase plan on April 21, 2016. During 2017, the Company repurchased 155,312 shares of common stock for approximately $3.5 million under this program, at a weighted average price of $22.83 per share. During 2016, the Company repurchased 1,212,230 shares of common stock for approximately $29.0 million under this program, at a weighted average price of $23.71 per share. The repurchased shares were subsequently retired. Redeemable Preferred Stock On October 11, 2016, the Company entered into a stock purchase agreement with Development Bank of Japan Inc. (“DBJ”), relating to the sale and issuance of an aggregate of 1,000,000 shares of the Company’s 6.5% Series A Preferred Stock, $0.01 par value per share (the “Series A Preferred Stock”) at a purchase price of $20.00 per share. The purchase and sale of the Series A Preferred Stock closed on October 14, 2016. The net proceeds to the Company after deducting investor fees were $19.8 million. On September 22, 2017, the Company entered into a second stock purchase agreement with DBJ relating to the sale and issuance of an aggregate of 1,500,000 shares of the Company’s 6.5% Series A-2 Preferred Stock, $0.01 par value per share (the “Series A-2 Preferred Stock”) at a purchase price of $20.00 per share. The purchase and sale of the Series A-2 Preferred Stock closed on September 27, 2017. The net proceeds to the Company after deducting issuance costs were $29.7 million. The rights and privileges of the Preferred Stock are described below: Voting Rights: Holders of the Preferred Stock do not have general voting rights. Dividends: The Series A Preferred Stock and Series A-2 Preferred Stock carry quarterly dividends at the rate per annum of 6.5% per share. During 2017, the Series A Preferred Stock paid total dividends of $1.3 million. The first dividend for the Series A-2 Preferred Stock totaled $0.6 million and was paid on January 15, 2018. Liquidation Preference: The holders of the Preferred Stock have preference in the event of any voluntary or involuntary liquidation, dissolution, or winding-up of the corporation, including a merger or consolidation. Upon such liquidation event, the Preferred Stockholders are entitled to be paid out of the assets of the Company available for distribution to its stockholders after payment of all the Company’s indebtedness and other obligations and before any payment shall be made to the holders of common stock or any other class or series of stock ranking on liquidation junior to the Preferred Stock an amount equal to the greater of $20.00 per share, plus any declared but unpaid dividends. Redemption: The Preferred Stock has no stated maturity date, however the holders of the Preferred Stock have the option to require the Company to redeem all or any portion of the Preferred Stock for cash upon occurrence of any significant changes in operating results, ownership structure, or liqudity events as defined in the Preferred Stock purchase agreements. The redemption price is $20.00 per share plus dividends accrued but not paid. The Company is accreting the Preferred Stock to redemption value over the period from the date of issuance to the date first callable by the Preferred Stockholders (October 2023 for the Series A Preferred Stock and September 2024 for the Series A-2 Preferred Stock), such that the carrying amounts of the securities will equal the redemption amounts at the earliest redemption dates.

Equity

12 Months Ended

Dec. 31, 2017

(10) Equity

Common Stock Repurchase

On September 27, 2012, the Company announced that its Board of Directors authorized a plan to repurchase up to $100.0 million of its common stock over the next 5 years. The Board of Directors reaffirmed the repurchase plan on April 21, 2016. During 2017, the Company repurchased 155,312 shares of common stock for approximately $3.5 million under this program, at a weighted average price of $22.83 per share. During 2016, the Company repurchased 1,212,230 shares of common stock for approximately $29.0 million under this program, at a weighted average price of $23.71 per share. The repurchased shares were subsequently retired.

Redeemable Preferred Stock

On October 11, 2016, the Company entered into a stock purchase agreement with Development Bank of Japan Inc. (“DBJ”), relating to the sale and issuance of an aggregate of 1,000,000 shares of the Company’s 6.5% Series A Preferred Stock, $0.01 par value per share (the “Series A Preferred Stock”) at a purchase price of $20.00 per share. The purchase and sale of the Series A Preferred Stock closed on October 14, 2016. The net proceeds to the Company after deducting investor fees were $19.8 million.

On September 22, 2017, the Company entered into a second stock purchase agreement with DBJ relating to the sale and issuance of an aggregate of 1,500,000 shares of the Company’s 6.5% Series A-2 Preferred Stock, $0.01 par value per share (the “Series A-2 Preferred Stock”) at a purchase price of $20.00 per share. The purchase and sale of the Series A-2 Preferred Stock closed on September 27, 2017. The net proceeds to the Company after deducting issuance costs were $29.7 million.

The rights and privileges of the Preferred Stock are described below:

Voting Rights: Holders of the Preferred Stock do not have general voting rights.

Dividends: The Series A Preferred Stock and Series A-2 Preferred Stock carry quarterly dividends at the rate per annum of 6.5% per share. During 2017, the Series A Preferred Stock paid total dividends of $1.3 million. The first dividend for the Series A-2 Preferred Stock totaled $0.6 million and was paid on January 15, 2018.

Liquidation Preference: The holders of the Preferred Stock have preference in the event of any voluntary or involuntary liquidation, dissolution, or winding-up of the corporation, including a merger or consolidation. Upon such liquidation event, the Preferred Stockholders are entitled to be paid out of the assets of the Company available for distribution to its stockholders after payment of all the Company’s indebtedness and other obligations and before any payment shall be made to the holders of common stock or any other class or series of stock ranking on liquidation junior to the Preferred Stock an amount equal to the greater of $20.00 per share, plus any declared but unpaid dividends.

Redemption: The Preferred Stock has no stated maturity date, however the holders of the Preferred Stock have the option to require the Company to redeem all or any portion of the Preferred Stock for cash upon occurrence of any significant changes in operating results, ownership structure, or liqudity events as defined in the Preferred Stock purchase agreements. The redemption price is $20.00 per share plus dividends accrued but not paid. The Company is accreting the Preferred Stock to redemption value over the period from the date of issuance to the date first callable by the Preferred Stockholders (October 2023 for the Series A Preferred Stock and September 2024 for the Series A-2 Preferred Stock), such that the carrying amounts of the securities will equal the redemption amounts at the earliest redemption dates.