Summary of Significant Accounting Policies - Schedule of Reconciliation of Numerator and Denominator of the Basic and Diluted Earnings Per Share Computations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Basic EPS, Income (Numerator)
Earnings (loss) available to common shareholders	$ 73,012	$ (61,267)
Diluted EPS, Income (Numerator)
Earnings (loss) available to common shareholders	$ 73,012	$ (61,267)
Basic EPS, Weighted Average Shares (Denominator)
Number of shares outstanding	45,178	44,920
Effect of Dilutive Securities, Shares (Denominator)
Stock options and restricted stock units	496
Diluted EPS, Weighted Average Shares (Denominator)
Number of shares outstanding	45,674	44,920
Earnings Per Share, Diluted, Other Disclosures
Anti-dilutive options excluded from diluted EPS		94
Basic EPS, Per Share Amount
Basic net earnings per share (in dollars per share)	$ 1.62	$ (1.36)
Diluted EPS, Per Share Amount
Diluted earnings per share (in dollars per share)	$ 1.60	$ (1.36)