Stock-Based Compensation Plans	6 Months Ended
Jun. 30, 2019
Stock-Based Compensation Plans [Abstract]
Stock-Based Compensation Plans	(11)Stock-Based Compensation Plans The Company maintains various stock incentive plans that provide long-term incentives to the Company’s key employees, including officers, directors, consultants and advisors (Eligible Participants). Under the stock incentive plans, the Company may grant incentive stock options, restricted stock, restricted stock units, stock appreciation rights, other stock-based awards or any combination thereof to Eligible Participants. The Company’s total compensation expense related to these plans was approximately $13.4 million and $16.3 million for the six months ended June 30, 2019 and 2018, respectively, which is reflected in general and administrative expenses.

Stock-Based Compensation Plans

6 Months Ended

Jun. 30, 2019

Stock-Based Compensation Plans [Abstract]

(11)Stock-Based Compensation Plans

The Company maintains various stock incentive plans that provide long-term incentives to the Company’s key employees, including officers, directors, consultants and advisors (Eligible Participants). Under the stock incentive plans, the Company may grant incentive stock options, restricted stock, restricted stock units, stock appreciation rights, other stock-based awards or any combination thereof to Eligible Participants. The Company’s total compensation expense related to these plans was approximately $13.4 million and $16.3 million for the six months ended June 30, 2019 and 2018, respectively, which is reflected in general and administrative expenses.