Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended						9 Months Ended
	Jan. 01, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2018
Income per share
Strike price of the warrant transactions (in dollars per share)		$ 80.91						$ 80.91		$ 80.91
Numerator:
Net earnings		$ 1,749	$ 7,865	$ 25,616	$ 21,562	$ 23,726	$ 5,694	$ 35,230	$ 50,982
After-tax interest expense for 2023 Notes		0			0			2,664	0
Numerator for dilutive earnings per share		$ 1,749			$ 21,562			$ 37,894	$ 50,982
Denominator:
Weighted average shares outstanding, basic (in shares)		53,789,674			53,187,764			53,517,838	53,053,441
Effect of dilutive securities:
Stock options, RSU and SAR (in shares)		1,245,164			1,147,030			1,241,347	1,248,020
Convertible notes (in shares)		0			0			6,783,936	0
Weighted average shares outstanding, diluted (in shares)		55,034,838			54,334,794			61,543,121	54,301,461
Earnings per share, basic (in dollars per share)		$ 0.03			$ 0.41			$ 0.66	$ 0.96
Earnings per share, diluted (in dollars per share)		0.03			$ 0.40			0.62	$ 0.94
Convertible Debt
Income per share
Conversion price, per share of common stock (in dollars per share)		$ 59.33						$ 59.33		$ 59.33
Convertible Debt | Accounting Standards Update 2020-06
Effect of dilutive securities:
Convertible notes (in shares)	6,800,000							6,800,000
2023 Notes
Income per share
Common stock equivalents excluded in the calculation of diluted income per share (in shares)		6,783,936			0			0	0
Stock options, RSUs, PSUs
Income per share
Common stock equivalents excluded in the calculation of diluted income per share (in shares)		792,904			1,654,816			470,822	1,397,424