Fair Value Measurements - (Details) - Recurring - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 31,515	$ 21,462
Total assets	31,515	21,462
Level 1
Assets
Cash and cash equivalents	31,515	21,462
Total assets	31,515	$ 21,462
Level 3
Liabilities
Contingent consideration	$ 0