Equity and Share-Based Compensation - Common Shares (Details) - shares		3 Months Ended
	Feb. 14, 2019	Mar. 31, 2019
Common Stock
Changes in number of shares outstanding
Common stock, beginning balance (in shares)		25,520,170
Common stock issued (in shares)		99,595
Retirement of common shares (in shares)		(5,000,000)
Common stock, ending balance (in shares)		20,619,765
Acquisition of treasury stock (in shares)	5,000,000
Retirement of treasury stock (in shares)	5,000,000
Treasury Stock
Changes in number of shares outstanding
Treasury stock, beginning balance (in shares)		(174,189)
Acquisition of treasury stock (in shares)		5,031,154
Retirement of treasury stock (in shares)		5,000,000
Treasury stock, ending balance (in shares)		(205,343)