Annual report pursuant to Section 13 and 15(d)

Acquisitions of ITS - Fair Value of Consideration Transferred (Details)

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Acquisitions of ITS - Fair Value of Consideration Transferred (Details) (ITS [Member], USD $)
In Thousands, unless otherwise specified
0 Months Ended
Apr. 22, 2013
ITS [Member]
 
Business Acquisition [Line Items]  
Cash paid to, or on behalf of, ITS and its equity holders $ 101,000
Cash deposited in escrow 19,000
Fair value of contingent consideration deposited in escrow for assets not acquired 5,000
Total fair value of the consideration transferred $ 125,000