Stock Incentive Plans	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Stock Incentive Plans	Stock Incentive PlansOur 2016 Long-Term Incentive Plan (“2016 Plan”) authorizes up to 10,000,000 shares of common stock to be issued at the discretion of the Compensation Committee of the Board of Directors. Our non-employee directors, officers and key employees are eligible to participate in the 2016 Plan. The 2016 Plan allows for the issuance of, among other things, stock options, stock appreciation rights, restricted stock, deferred stock units, performance units and dividend equivalent rights. Vesting periods for options, deferred stock units and restricted shares generally range from three to four years. Options expire ten years from the date of grant. Stock-based compensation expense totaled $4,757,000 and $10,333,000 for the three and six months ended June 30, 2021, respectfully,