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Selected Balance Sheet Data - Schedule of Other Assets (Detail) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Other Assets [Line Items] |  |
Other assets Current | $ 3,826 | $ 5,136
Other assets Non-Current | 9,056 | 9,116
Due from independent contractors [Member] |  |
Other Assets [Line Items] |  |
Other assets Current | 1,783 | 2,545
Other assets Non-Current | 7,678 | 7,358
Security deposits [Member] |  |
Other Assets [Line Items] |  |
Other assets Current | 0 | 0
Other assets Non-Current | 1,054 | 1,425
Employee Notes Receivable [Member] |  |
Other Assets [Line Items] |  |
Other assets Current | 434 | 224
Other assets Non-Current | 112 | 158
Customer trust accounts and other [Member] |  |
Other Assets [Line Items] |  |
Other assets Current | 1,609 | 2,367
Other assets Non-Current | $ 212 | $ 175

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- Definition Amount of current assets classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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