Do you happen to have other examples of larger companies doing this? I haven't heard of anything concrete other than this, mostly just anecdotes from people here on HN saying they feel the job market is cooling.
[0] https://medium.com/halting-problem/zyngas-offices-now-worth-...
[1] http://www.wsj.com/articles/zynga-to-sell-its-san-francisco-...