Basis of Presentation and Significant Accounting Policies - Additional Information (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) country	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Basis of Presentation and Accounting Policies [Line Items]
Award requisite service period (years)		2 years
Prior period reclassification adjustment	$ 7,500,000
Goodwill impairment		$ 0	$ 0	$ 0
Goodwill		$ 25,210,000	14,163,000
Number of countries in which entity operates | country		60
Amortization expense for intangible assets		$ 1,800,000	700,000	800,000
Marketable securities, realized gains (losses)		(700,000)	1,400,000	$ 3,900,000
Deferred revenue		57,600,000	$ 76,100,000
U.S. Services
Basis of Presentation and Accounting Policies [Line Items]
Goodwill		16,300,000
Tubular Sales Segment
Basis of Presentation and Accounting Policies [Line Items]
Goodwill		$ 2,400,000