Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents our assets and liabilities measured at fair value on a recurring basis (in thousands):

	Fair Value Measurements on a Recurring Basis as of June 30, 2017
Fair Value Measurements in:	Level 1		Level 2		Level 3		Total
Assets:
Money market account	$	49,642	$	—	$	—	$	49,642
Total	$	49,642	$	—	$	—	$	49,642
Liabilities:
Subsidiary unit awards	$	—	$	—	$	2,912	$	2,912
Contingent consideration liability from acquisition	—		—		—		—
Total	$	—	$	—	$	2,912	$	2,912

	Fair Value Measurements on a Recurring Basis as of December 31, 2016
Fair value measurements in:	Level 1		Level 2		Level 3		Total
Assets:
Money market account	$	135,204	$	—	$	—	$	135,204
Total	$	135,204	$	—	$	—	$	135,204
Liabilities:
Subsidiary unit awards	$	—	$	—	$	2,768	$	2,768
Contingent consideration liability from acquisition	—		—		—		—
Total	$	—	$	—	$	2,768	$	2,768

Summary of Fair Value of Level 3 Liability

The following table summarizes the change in fair value of the Level 3 liabilities for subsidiary unit awards and contingent consideration liability from acquisition (in thousands):

	Fair Value Measurements Using Significant Unobservable Inputs
	Three Months Ended   June 30, 2017					Three Months Ended   June 30, 2016
	Subsidiary unit awards			Contingent consideration liability from acquisition		Subsidiary unit awards		Contingent consideration liability from acquisition
Beginning of period balance	$	2,978		$	—	$	550	$	170
Total (gains) losses included in earnings	(66		)	—		175		(130		)
Ending of period balance	$	2,912		$	—	$	725	$	40

	Fair Value Measurements Using Significant Unobservable Inputs
	Six Months Ended June 30, 2017				Six Months Ended June 30, 2016
	Subsidiary unit awards		Contingent consideration liability from acquisition		Subsidiary unit awards		Contingent consideration liability from acquisition
Beginning of period balance	$	2,768	$	—	$	532	$	230
Total (gains) losses included in earnings	144		—		193		(190		)
Ending of period balance	$	2,912	$	—	$	725	$	40