Assets Held for Sale (Details) - USD ($) $ in Thousands		6 Months Ended
	Jul. 15, 2016	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale		$ 0		$ 7,179
Proceeds from sale-leaseback financing obligation		$ 42,455	$ 0
Torrance Facility and Certain Branch Properties in Northern California | Disposal Group, Held-for-sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale-leaseback financing obligation	$ 42,500