Revenue - Revenue by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue by Geographic Area [Line Items]
Revenues	$ 524,031	$ 446,159	$ 498,199	$ 970,190	$ 935,752
Africa [Member]
Revenue by Geographic Area [Line Items]
Revenues	67,910		71,405	131,319	134,197
United Kingdom [Member]
Revenue by Geographic Area [Line Items]
Revenues	46,131		45,967	84,888	89,147
Norway [Member]
Revenue by Geographic Area [Line Items]
Revenues	47,911		57,360	93,188	109,654
Asia Pacific [Member]
Revenue by Geographic Area [Line Items]
Revenues	49,544		42,150	99,105	79,697
Brazil [Member]
Revenue by Geographic Area [Line Items]
Revenues	37,951		27,520	68,302	48,173
Other Geographical [Member]
Revenue by Geographic Area [Line Items]
Revenues	21,120		25,836	44,168	46,271
Non-US [Member]
Revenue by Geographic Area [Line Items]
Revenues	270,567		270,238	520,970	507,139
UNITED STATES
Revenue by Geographic Area [Line Items]
Revenues	$ 253,464		$ 227,961	$ 449,220	$ 428,613