Acquisitions Acquisitions (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		12 Months Ended		1 Months Ended	12 Months Ended	0 Months Ended	11 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Sep. 30, 2013	Oct. 19, 2011	Sep. 30, 2012	Nov. 07, 2011	Sep. 30, 2012	Jan. 31, 2013 Installments	Jun. 12, 2013
Business Acquisition [Line Items]
Convertible Preferred Stock, Conversion Ratio										2.84
Repurchase common stock, period		10 days
Shares redeemed	(4,159)
Stock repurchased during initial public offering, value		$ 0	$ 0	$ (600)
Offering price per share										$ 15.00
PlanSwift, LLC [Member]
Business Acquisition [Line Items]
Number of unitholders that can repurchase common stock		1
Shares redeemed		40
Stock repurchased during initial public offering, value		600
GradeBeam, LLC [Member]
Business Acquisition [Line Items]
Cash consideration					10
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual						2,072
Submittal Exchange [Member]
Business Acquisition [Line Items]
Cash consideration							2,404
Business Combination, Consideration Transferred							15,355
Shares issued in acquisition							482
Business Acquisition, Percentage of Voting Interests Acquired							100.00%
Payment of Submittal Exchange's notes payable							403
Share price							$ 26.05
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual								2,812
Submittal Exchange [Member] | Class A Preferred Units [Member]
Business Acquisition [Line Items]
Convertible Preferred Stock, Conversion Ratio							0.5
Submittal Exchange [Member] | Submittal Exchange Holdings [Member]
Business Acquisition [Line Items]
Cash consideration							2,404
Business Combination, Consideration Transferred							403
Number of units acquired							85
Shares issued in acquisition							482
Business Acquisition, Percentage of Voting Interests Acquired							18.00%
Capital account basis threshold after pro-rata allocation of distributions and profits or losses for additional allocation							0
Percentage used to determine allocation of distributions and profits							99.00%
Submittal Exchange [Member] | Submittal Exchange Holdings [Member] | Other Than Liquidation Matters [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired							100.00%
Submittal Exchange [Member] | Submittal Exchange Holdings [Member] | Liquidation Matters [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired							15.00%
Submittal Exchange [Member] | Submittal Exchange Holdings [Member] | Class A Preferred Units [Member]
Business Acquisition [Line Items]
Percentage used to determine allocation of distributions and profits							1.00%
PlanSwift, LLC [Member]
Business Acquisition [Line Items]
Cash consideration									989
Business Combination, Consideration Transferred									10,101
Shares issued in acquisition									539
Payment of Submittal Exchange's notes payable									1,214
Holding period for escrow									18 months
Number of installments for escrow									2
Potential repurchase of common stock		1,500
Redemption rate for conversion of debt									0.333
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual				$ 4,181
PlanSwift, LLC [Member] | Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Intangible assets acquired, useful life			3 years
PlanSwift, LLC [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets acquired, useful life			5 years
PlanSwift, LLC [Member] | Escrow [Member]
Business Acquisition [Line Items]
Shares issued in acquisition									81
Submittal Exchange Holdings [Member]
Business Acquisition [Line Items]
Share price							$ 26.05
IPO [Member] | Convertible A-1 and A-2 Preferred Stock [Member]
Business Acquisition [Line Items]
Shares converted into stock										5,336
IPO [Member] | Submittal Exchange [Member] | Preferred Class A [Member]
Business Acquisition [Line Items]
Shares converted into stock										1
Convertible Preferred Stock, Conversion Ratio										0.50