Redeemable Preferred Stock	3 Months Ended
Mar. 31, 2019
Text Block [Abstract]
Redeemable Preferred Stock	NOTE 10 - REDEEMABLE PREFERRED STOCK During 2017, we issued 150,000 shares of Series A (140,202 shares) and Series B (9,798 shares) Perpetual Convertible Preferred Stock, par value $0.01 per share to TPG Growth III Sidewall, L.P. (“TPG”) for an aggregate purchase price of $150.0 million. On August 30, 2017, the Series B shares were converted into Series A redeemable preferred stock, the “redeemable preferred stock” after approval by our shareholders. The redeemable preferred stock has an initial stated value of $1,000 per share, par value of $0.01 per share and liquidation preference over common stock. The redeemable preferred stock is convertible into shares of our common stock equal to the number of shares determined by dividing the sum of the stated value and any accrued and unpaid dividends by the conversion price of $28.162. The redeemable preferred stock accrues dividends at a rate of 9 percent per annum, payable at our election either in-kind or in cash and is also entitled to participate in dividends on common stock in an amount equal to that which would have been due had the shares been converted into common stock. We may mandate conversion of the redeemable preferred stock if the price of the common stock exceeds $84.49. TPG may redeem the shares upon the occurrence of any of the following events (referred to as a “redemption event”): a change in control, recapitalization, merger, sale of substantially all of the Company’s assets, liquidation or delisting of the Company’s common stock. In addition, as originally issued, TPG has the right, at its option, to unconditionally redeem the shares at any time after May 23, 2024, subsequently extended to September 14, 2025 (the “redemption date”). We may, at our option, redeem in whole at any time all of the shares of redeemable preferred stock outstanding. At redemption by either party, the redemption value will be the greater of two times the initial face value ($150.0 million) and any accrued unpaid dividends or dividends paid-in-kind, currently $300.0 million, or the product of the number of common shares into which the redeemable preferred stock could be converted (5.3 million shares currently) and the then current market price of the common stock. We have determined that the conversion option and the redemption option exercisable upon occurrence of a “redemption event” which are embedded in the redeemable preferred stock must be accounted for separately from the redeemable preferred stock as a derivative liability (as more fully described under Note 4, “Derivative Financial Instruments”). Since the redeemable preferred stock may be redeemed at the option of the holder, but is not mandatorily redeemable, the redeemable preferred stock has been classified as mezzanine equity and initially recognized at fair value of $150.0 million (the proceeds on the date of issuance) less issuance costs of $3.7 million, resulting in an initial value of $146.3 million. This amount has been further reduced by $10.9 million assigned to the embedded derivative liability at date of issuance, resulting in an adjusted initial value of $135.5 million. The difference between the adjusted initial value of $135.5 million and the redemption value of $300 million was being accreted over the seven-year period from the date of issuance through May 23, 2024 (the original date at which the holder had the unconditional right to redeem the shares, deemed to be the earliest likely redemption date) using the effective interest method. The accretion to the carrying value of the redeemable preferred stock is treated as a deemed dividend, recorded as a charge to retained earnings and deducted in computing earnings per share (analogous to the treatment for stated and participating dividends paid on the redeemable preferred stock). On November 7, 2018, the Company filed a Certificate of Correction to the Certificate of Designations for the preferred stock, which became effective upon filing and corrected the redemption date to September 14, 2025. This resulted in a modification of the redeemable preferred stock. As a result of the modification, the carrying value of the redeemable preferred stock decreased $17.2 million (which was credited to retained earnings, treated as a deemed dividend and is added back to compute earnings per share) and the period for accretion of the carrying value to the redemption value has been extended to September 14, 2025. The accretion has been adjusted to amortize the excess of the redemption value over the carrying value over the period through September 14, 2025. The accumulated accretion net of the modification adjustment as of March 31, 2019 is $12.9 million resulting in an adjusted redeemable preferred stock balance of $148.4 million.

Redeemable Preferred Stock

3 Months Ended

Mar. 31, 2019

NOTE 10 - REDEEMABLE PREFERRED STOCK

During 2017, we issued 150,000 shares of Series A (140,202 shares) and Series B (9,798 shares) Perpetual Convertible Preferred Stock, par value $0.01 per share to TPG Growth III Sidewall, L.P. (“TPG”) for an aggregate purchase price of $150.0 million. On August 30, 2017, the Series B shares were converted into Series A redeemable preferred stock, the “redeemable preferred stock” after approval by our shareholders. The redeemable preferred stock has an initial stated value of $1,000 per share, par value of $0.01 per share and liquidation preference over common stock.

The redeemable preferred stock is convertible into shares of our common stock equal to the number of shares determined by dividing the sum of the stated value and any accrued and unpaid dividends by the conversion price of $28.162. The redeemable preferred stock accrues dividends at a rate of 9 percent per annum, payable at our election either in-kind or in cash and is also entitled to participate in dividends on common stock in an amount equal to that which would have been due had the shares been converted into common stock.

We may mandate conversion of the redeemable preferred stock if the price of the common stock exceeds $84.49. TPG may redeem the shares upon the occurrence of any of the following events (referred to as a “redemption event”): a change in control, recapitalization, merger, sale of substantially all of the Company’s assets, liquidation or delisting of the Company’s common stock. In addition, as originally issued, TPG has the right, at its option, to unconditionally redeem the shares at any time after May 23, 2024, subsequently extended to September 14, 2025 (the “redemption date”). We may, at our option, redeem in whole at any time all of the shares of redeemable preferred stock outstanding. At redemption by either party, the redemption value will be the greater of two times the initial face value ($150.0 million) and any accrued unpaid dividends or dividends paid-in-kind, currently $300.0 million, or the product of the number of common shares into which the redeemable preferred stock could be converted (5.3 million shares currently) and the then current market price of the common stock. We have determined that the conversion option and the redemption option exercisable upon occurrence of a “redemption event” which are embedded in the redeemable preferred stock must be accounted for separately from the redeemable preferred stock as a derivative liability (as more fully described under Note 4, “Derivative Financial Instruments”).

Since the redeemable preferred stock may be redeemed at the option of the holder, but is not mandatorily redeemable, the redeemable preferred stock has been classified as mezzanine equity and initially recognized at fair value of $150.0 million (the proceeds on the date of issuance) less issuance costs of $3.7 million, resulting in an initial value of $146.3 million. This amount has been further reduced by $10.9 million assigned to the embedded derivative liability at date of issuance, resulting in an adjusted initial value of $135.5 million. The difference between the adjusted initial value of $135.5 million and the redemption value of $300 million was being accreted over the seven-year period from the date of issuance through May 23, 2024 (the original date at which the holder had the unconditional right to redeem the shares, deemed to be the earliest likely redemption date) using the effective interest method. The accretion to the carrying value of the redeemable preferred stock is treated as a deemed dividend, recorded as a charge to retained earnings and deducted in computing earnings per share (analogous to the treatment for stated and participating dividends paid on the redeemable preferred stock).

On November 7, 2018, the Company filed a Certificate of Correction to the Certificate of Designations for the preferred stock, which became effective upon filing and corrected the redemption date to September 14, 2025. This resulted in a modification of the redeemable preferred stock. As a result of the modification, the carrying value of the redeemable preferred stock decreased $17.2 million (which was credited to retained earnings, treated as a deemed dividend and is added back to compute earnings per share) and the period for accretion of the carrying value to the redemption value has been extended to September 14, 2025. The accretion has been adjusted to amortize the excess of the redemption value over the carrying value over the period through September 14, 2025. The accumulated accretion net of the modification adjustment as of March 31, 2019 is $12.9 million resulting in an adjusted redeemable preferred stock balance of $148.4 million.