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Net Income per share - Basic and Diluted Income Per Common Share Computation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 202,129	$ 402,710	$ 129,085
Weighted average stock outstanding - basic (USD per share)	136,844	140,646	136,206
Weighted average stock outstanding - diluted (USD per share)	140,608	146,796	141,463
Earnings per share - basic (USD per share)	$ 1.48	$ 2.86	$ 0.95
Earnings per share - diluted (USD per share)	$ 1.44	$ 2.74	$ 0.91
Convertible Debt Securities
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	1,077	2,858	2,313
Stock options
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	2,265	2,737	2,317
Restricted stock awards
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	422	555	627

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