Business Acquisitions, Goodwill and Other Intangible Assets - Net Assets Acquired (Details) - USD ($) $ in Thousands	Dec. 30, 2016	Jun. 30, 2016	Nov. 30, 2015
Identifiable intangible assets:
Goodwill	$ 75,337	$ 75,337
Oil and Gas
Business Acquisition [Line Items]
Cash and cash equivalents			$ 355
Accounts receivable			28,263
Prepaid expenses and other current assets			7,228
Property and equipment			3,552
Identifiable intangible assets:
Total identifiable intangible assets			44,500
Goodwill			60,294
Other non-current assets			20,683
Accounts payable			(2,544)
Accrued compensation and benefits			(7,201)
Other accrued liabilities			(5,110)
Current portion of long-term debt			(6,485)
Long-term debt, net of current portion			(18,547)
Non-controlling interest			(490)
Net assets acquired			124,498
Oil and Gas | Customer relationships and backlog
Identifiable intangible assets:
Total identifiable intangible assets			43,500
Oil and Gas | Internally developed software
Identifiable intangible assets:
Total identifiable intangible assets			1,000
Previously Reported | Oil and Gas
Business Acquisition [Line Items]
Cash and cash equivalents			355
Accounts receivable			26,406
Prepaid expenses and other current assets			7,276
Property and equipment			3,552
Identifiable intangible assets:
Total identifiable intangible assets			44,500
Goodwill			64,673
Other non-current assets			20,683
Accounts payable			(2,587)
Accrued compensation and benefits			(7,199)
Other accrued liabilities			(5,210)
Current portion of long-term debt			(6,447)
Long-term debt, net of current portion			(18,547)
Non-controlling interest			0
Net assets acquired			127,455
Previously Reported | Oil and Gas | Customer relationships and backlog
Identifiable intangible assets:
Total identifiable intangible assets			43,500
Previously Reported | Oil and Gas | Internally developed software
Identifiable intangible assets:
Total identifiable intangible assets			1,000
Adjustment | Oil and Gas
Business Acquisition [Line Items]
Cash and cash equivalents			0
Accounts receivable			(1,857)
Prepaid expenses and other current assets			48
Property and equipment			0
Identifiable intangible assets:
Total identifiable intangible assets			0
Goodwill			4,379
Other non-current assets			0
Accounts payable			(43)
Accrued compensation and benefits			2
Other accrued liabilities			(100)
Current portion of long-term debt			38
Long-term debt, net of current portion			0
Non-controlling interest			490
Net assets acquired			(2,957)
Adjustment | Oil and Gas | Customer relationships and backlog
Identifiable intangible assets:
Total identifiable intangible assets			0
Adjustment | Oil and Gas | Internally developed software
Identifiable intangible assets:
Total identifiable intangible assets			$ 0