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Acquisitions - Business Combination - Summary of Supplemental Proforma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Revenue			$ 1,013,184
Net income (loss)			$ 274,577
Basic net income (loss) per common share			$ 5.07
Diluted net income (loss) per common share			$ 5.07
ILX and Castex
Business Acquisition [Line Items]
Revenue	$ 634,921	$ 1,246,391
Net income (loss)	$ (449,988)	$ 148,091
Basic net income (loss) per common share	$ (6.48)	$ 2.27
Diluted net income (loss) per common share	$ (6.48)	$ 2.26

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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