Joint Venture (Details)	1 Months Ended		3 Months Ended		6 Months Ended
	Feb. 28, 2014 JPY (¥)	Feb. 28, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 JPY (¥)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Joint Venture
Amount contributed by investors to acquire equity interests						$ 1,678,000	$ 1,953,000
Redeemable non-controlling interests
Increase due to investment by redeemable non-controlling interests						1,445,000
Net loss attributable to redeemable non-controlling interest (excluding adjustment to redeemable non-controlling interest)			$ 415,000	$ 159,000		869,000	170,000
Adjustment to redeemable non-controlling interest			(912,000)			(912,000)
Net loss attributable to redeemable noncontrolling interests			$ (497,000)	$ 159,000		(43,000)	$ 170,000
Marketo KK
Redeemable non-controlling interests
Adjustment to redeemable non-controlling interest						$ 900,000
Marketo KK | Vesting milestones
Joint Venture
Equity interests held by company (as a percent)			60.10%		60.10%	60.10%
Contributions to subscribe to additional shares					¥ 237,480,955	$ 2,000,000
Investors
Joint Venture
Amount contributed by investors to acquire equity interests	¥ 200,000,000	$ 2,000,000
Percentage of equity interest held by investors	35.40%	35.40%
Percentage of the common stock callable or puttable beginning on the seventh anniversary					20.00%	20.00%
Percentage of the common stock callable or puttable beginning on the eighth anniversary					40.00%	40.00%
Percentage of the common stock callable or puttable beginning on the tenth anniversary					100.00%	100.00%
Investors | Vesting milestones
Joint Venture
Contributions to subscribe to additional shares					¥ 200,000,000	$ 1,700,000
Percentage of equity interest held by investors			39.90%		39.90%	39.90%