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Stockholders’ equity Stockholders' Equity (Notes) - USD ($) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |
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Aug. 05, 2019 | Sep. 30, 2019 | Jul. 31, 2019 | Jun. 30, 2019 | Jan. 31, 2019 | Dec. 31, 2021 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2018
Equity [Abstract] |  |  |  |  |  |  |  |  |
Stockholders' Equity Note Disclosure [Text Block] |  |  |  |  |  | Common Stock Pursuant to the Company’s amended and restated certificate of incorporation (“Certificate of Incorporation”), the Company is authorized to issue up to 100,000,000 shares of common stock, par value $0.01 per share. As of December 31, 2021, there were 51,151,911 shares of common stock issued and 50,759,972 outstanding. Preferred Stock Pursuant to the Company’s Certificate of Incorporation, the Company is authorized to issue up to 5,000,000 shares of preferred stock, par value $0.01 per share. The Board of Directors (the “Board”) has the authority, subject to any limitations imposed by law or NYSE rules, without further action by the stockholders, to issue such preferred stock in one or more series and to fix the voting powers (if any), the preferences and relative, participating, optional or other special rights or privileges, if any, of such series and the qualifications, limitations or restrictions thereof. These rights, preferences and privileges may include, but are not limited to, dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms and the number of shares constituting any series or the designation of that series. On December 23, 2021, the Company issued 2,000 shares of 5.75% Series A Cumulative Perpetual Preferred Stock for $50.0 million. The Company will pay cumulative cash dividends on the Series A Preferred Stock, when and as declared by the Board Of Directors, at the rate of 5.75% of the $25,000 liquidation preference per share. Dividends will be payable quarterly in arrears, beginning on or about March 15, 2022. The Company will have the option to redeem the shares, in whole or in part, at a redemption price equal to $25,000 per share on or after December 23, 2026, which is the fifth anniversary of the date of issuance of the Series A Preferred Stock, or upon change of control. Unless the Company decides to exercise the redemption option, upon the occurrence of a change of control, preferred shareholders will have the right to convert some or all of the Series A Preferred Stock into a number of shares of the Company’s common stock equal to the lesser of (i) the quotient obtained by dividing (A) the sum of (x) the liquidation preference to be converted, plus (y) the amount per such share equal to any accrued and unpaid dividends, by (B) the common stock price, and (ii) 1.7059. The Company incurred $2.3 million in fees and expenses in connection with this transaction that reduced the amount of equity on our consolidated balance sheet. The table below presents a summary of the perpetual preferred stock outstanding at December 31, 2021.
Series |  | Description |  | Initial date of issuance |  | Total Shares Outstanding |  | Liquidation Preference per Share (in dollars) |  | Carrying Value |  | Per Annum Dividend Rate |  | Redemption Period
Series A(1) |  | 5.75% Cumulative Perpetual |  | December 2021 |  | 2,000 |  |  | $ | 25 |  |  | $ | 50,000 |  |  | 5.75 | % |  | n/a
(1) Ownership is held in the form of Depositary Shares, each representing a 1/1,000th interest in a share of preferred stock, paying a quarterly cash dividend, if and when declared. Share Repurchase Programs In October 2018, the Company’s Board authorized a share repurchase program for the period beginning on October 3, 2018 and ending on October 3, 2020 of the Company’s common stock for an aggregate price not to exceed $30.0 million (the “2018 Share Repurchase Program”). The timing, volume and nature of share repurchases are at the discretion of management and dependent on market conditions, corporate and regulatory requirements, available cash and other factors, and may be suspended or discontinued at any time. Authorized repurchases may be made from time to time in the open market, through block trades or in privately negotiated transactions. No assurance can be given that any particular amount of common stock will be repurchased. All or part of the repurchases may be implemented under a trading plan under Rule 10b5-1 or Rule 10b-18 established by the SEC, which would allow repurchases under pre-set terms at times when the Company might otherwise be prevented from doing so under insider trading laws or because of self-imposed blackout periods. This repurchase program may be modified, extended or terminated by the Board at any time. The Company intends to finance any repurchases with available cash and proceeds from borrowings under lines of credit. On December 31, 2018, the Company’s Board authorized implementation of share repurchases in accordance with a trading plan under Rule 10b5-1 (the “December 2018 Trading Plan”) within the 2018 Share Repurchase Program. The trading plan was effective from January 2, 2019 until March 30, 2019. In January 2019, the Company repurchased 7,862 shares for approximately $0.1 million under the December 2018 Trading Plan. In June 2019, the Company’s Board authorized discrete repurchases under the 2018 Share Repurchase Program of 39,320 shares for approximately $0.3 million. On June 27, 2019, the Company’s Board authorized implementation of share repurchases in accordance with a trading plan under Rule 10b5-1 (the “June 2019 Trading Plan”) within the 2018 Share Repurchase Program. The trading plan was effective from July 1, 2019 until August 5, 2019. In July 2019, the Company repurchased 144,584 shares for approximately $1.2 million under the June 2019 Trading Plan. In September 2019, the Company’s Board authorized discrete repurchases under the 2018 Share Repurchase Program of 63,417 shares for approximately $0.6 million. The 2018 Share Repurchase Program expired on October 3, 2020. |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  |  |  |  | 100,000,000 |  |  |
Stock repurchased in period (in shares) |  | 63,417 | 144,584 | 39,320 | 7,862 |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  | $ 30,000 |  |  |
Treasury Stock, Shares, Acquired |  |  |  |  |  |  | 255,183,000 |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  |  |  | $ 2,186 |  |
Preferred Stock, Shares Authorized |  |  |  |  |  | 5,000,000 |  |  |
Preferred Stock, Par or Stated Value Per Share |  |  |  |  |  | $ 0.01 |  |  |
Preferred Stock, Shares Outstanding |  |  |  |  |  | 2,000 |  | 0 |
Common stock, par value (in dollars per share) |  |  |  |  |  | $ 0.01 |  |  |
Document Period End Date |  |  |  |  |  | Dec. 31, 2021 |  |  |
Common Stock, Shares, Issued |  |  |  |  |  | 51,151,911 | 50,879,949 | 51,053,858 | 50,719,884
Common Stock, Shares, Outstanding |  |  |  |  |  | 50,759,972 |  |  |
Stock Repurchased During Period, Value |  | $ 600 | $ 1,200 | $ 300 | $ 100 |  |  |  |
Stock Repurchase Program Expiration Date | Aug. 05, 2019 |  |  |  |  |  |  |  |

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