v3.5.0.2

Summary of Significant Accounting Policies - Concentration Risk (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) item	Jun. 30, 2015 USD ($)	Dec. 31, 2015 item
Concentration of Credit Risk
Revenue	$ 49,110	$ 35,238	$ 96,554	$ 69,850
Client A
Concentration of Credit Risk
Revenue	17,600	15,900	35,500	33,400
Client B
Concentration of Credit Risk
Revenue	9,100	5,900	16,900	10,300
Client C
Concentration of Credit Risk
Revenue	$ 5,100	4,000	$ 10,200	8,300
Client D
Concentration of Credit Risk
Revenue		$ 3,400		$ 6,800
Revenue | Customer concentration risk | Client A
Concentration of Credit Risk
Percentage of concentration of credit risk	36.00%	45.00%	37.00%	48.00%
Revenue | Customer concentration risk | Client B
Concentration of Credit Risk
Percentage of concentration of credit risk	18.00%	17.00%	17.00%	15.00%
Revenue | Customer concentration risk | Client C
Concentration of Credit Risk
Percentage of concentration of credit risk	10.00%	11.00%	11.00%	12.00%
Revenue | Customer concentration risk | Client D
Concentration of Credit Risk
Percentage of concentration of credit risk		10.00%		10.00%
Accounts receivable | Credit concentration risk
Concentration of Credit Risk
Percentage of concentration of credit risk			79.00%		7.00%
Number of additional clients who accounted for more than 10% | item			0		1

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Represents information pertaining to number of additional clients who accounted for more than 10% during the period.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
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-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611

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Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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