Mandatorily Redeemable Preferred Stock	3 Months Ended
Mar. 31, 2016
Other Liabilities Disclosure [Abstract]
Mandatorily Redeemable Preferred Stock	MANDATORILY REDEEMABLE PREFERRED STOCK The Corporation has authorized 350.0 million shares of preferred stock, par value $0.01 per share, of which 21,202 shares of mandatorily redeemable voting preferred stock were issued and outstanding as of March 31, 2016 and December 31, 2015. Dividends on these preferred shares are payable quarterly in arrears at a rate of 8.0% per year. With respect to dividend, distribution and liquidation rights, the 8.0% voting preferred stock ranks senior to the Corporation’s common stock. Holders of the 8.0% voting preferred stock are generally entitled to one vote for each share and will vote together with the Corporation common stock as a single class on all matters that the Corporation’s common shareholders are entitled to vote upon. On or after November 15, 2018, a holder of the 8.0% voting preferred stock has the right to require the Corporation to redeem in cash the 8.0% voting preferred stock at $1,000 per share plus any accumulated unpaid dividends. On November 15, 2020, the Corporation shall mandatorily redeem all of the 8.0% voting preferred stock at $1,000 per share plus any accumulated unpaid dividends. Due to the fact that the outstanding 8.0% voting preferred stock is mandatorily redeemable by the Corporation, it is classified as a liability on the accompanying unaudited condensed consolidated balance sheets. Dividends on these preferred shares are classified as net interest expense on the accompanying unaudited condensed consolidated statements of operations. Fair Value of Mandatorily Redeemable Preferred Stock—As of March 31, 2016 and December 31, 2015, the estimated fair value of the 8.0% voting preferred stock was approximately $21.5 million and $21.2 million, respectively. The estimated fair value of the 8.0% voting preferred stock is determined by comparing current borrowing rates and risk spreads offered in the market to the stated interest rates and spreads (Level 2 fair value measures).

MANDATORILY REDEEMABLE PREFERRED STOCK

The Corporation has authorized 350.0 million shares of preferred stock, par value $0.01 per share, of which 21,202 shares of mandatorily redeemable voting preferred stock were issued and outstanding as of March 31, 2016 and December 31, 2015. Dividends on these preferred shares are payable quarterly in arrears at a rate of 8.0% per year. With respect to dividend, distribution and liquidation rights, the 8.0% voting preferred stock ranks senior to the Corporation’s common stock. Holders of the 8.0% voting preferred stock are generally entitled to one vote for each share and will vote together with the Corporation common stock as a single class on all matters that the Corporation’s common shareholders are entitled to vote upon. On or after November 15, 2018, a holder of the 8.0% voting preferred stock has the right to require the Corporation to redeem in cash the 8.0% voting preferred stock at $1,000 per share plus any accumulated unpaid dividends. On November 15, 2020, the Corporation shall mandatorily redeem all of the 8.0% voting preferred stock at $1,000 per share plus any accumulated unpaid dividends.

Due to the fact that the outstanding 8.0% voting preferred stock is mandatorily redeemable by the Corporation, it is classified as a liability on the accompanying unaudited condensed consolidated balance sheets. Dividends on these preferred shares are classified as net interest expense on the accompanying unaudited condensed consolidated statements of operations.

Fair Value of Mandatorily Redeemable Preferred Stock—As of March 31, 2016 and December 31, 2015, the estimated fair value of the 8.0% voting preferred stock was approximately $21.5 million and $21.2 million, respectively. The estimated fair value of the 8.0% voting preferred stock is determined by comparing current borrowing rates and risk spreads offered in the market to the stated interest rates and spreads (Level 2 fair value measures).