Business Combination - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands					2 Months Ended	3 Months Ended					4 Months Ended	6 Months Ended			12 Months Ended
	Aug. 08, 2016	Jun. 30, 2015	Jun. 30, 2015	Mar. 20, 2015	Sep. 08, 2015	Sep. 06, 2016	Jun. 14, 2016	Mar. 22, 2016	Jun. 16, 2015	Mar. 24, 2015	Dec. 29, 2015	Dec. 29, 2015	Jun. 30, 2015	Jun. 16, 2015	Jan. 03, 2017	Dec. 30, 2014
Business Acquisition [Line Items]
Merger consideration Per share			$ 38.84
Cash consideration paid			$ 95,000
Issuance of common stock (in shares)	1,533,542
Payments to acquire businesses, gross			120,000
Payments of transaction cost			10,200
Tax withholdings on restricted stock vesting			7,500
Funds remaining in trust account		$ 150,000	150,000										$ 150,000
DTH 2013 Senior Credit Facility
Business Acquisition [Line Items]
Proceed from revolver			10,000
DTH
Business Acquisition [Line Items]
Cash consideration paid			$ 105,164
Issuance of common stock (in shares)			4,553,540
Proceeds from issuance of common stock				$ 91,200
Payments to acquire businesses, gross			$ 284,305
Payments of transaction cost			10,164
Issuance of common stock, value			69,305
Goodwill adjustment															$ 800
Business combination, goodwill		319,056	319,056										319,056
Business combination, goodwill expected to be deductible for income tax purpose		600	$ 600										600
Step Two [Member]
Business Acquisition [Line Items]
Issuance of common stock (in shares)			3,500,000
Issuance of common stock, value			$ 35,000
Predecessor
Business Acquisition [Line Items]
Issuance of common stock (in shares)			3,089,532
Proceeds from issuance of common stock			$ 91,200										91,236			$ 0
Payments of transaction cost		$ 100							$ 900	$ 6,300			7,300
Tax withholdings on restricted stock vesting				$ 7,500									7,533			0
Issuance of common stock, value													91,236
Transaction-related costs													7,255			1,936
Payment of deferred underwriter compensation													0			0
Repayment of note payable													0			0
Predecessor | DTH
Business Acquisition [Line Items]
Issuance of common stock (in shares)			2,348,968
Proceeds from issuance of common stock			$ 91,200
Payments of transaction cost			$ 15,700
Predecessor | Levy Acquisition Corporation [Member]
Business Acquisition [Line Items]
Payments of transaction cost												$ 4,300
Acquisition related costs, not reported													$ 4,500	$ 2,900		$ 500
Predecessor | DTH Share Holders [Member]
Business Acquisition [Line Items]
Issuance of common stock (in shares)			740,564
Proceeds from issuance of common stock			$ 28,800
Successor
Business Acquisition [Line Items]
Proceeds from issuance of common stock												35,000			0
Payments of transaction cost					$ 12,000	$ 500	$ 100	$ 100			$ 1,000	12,300			100
Tax withholdings on restricted stock vesting												0			916
Issuance of common stock, value												224,306
Goodwill adjustment															781
Transaction-related costs												12,972			731
Business combination, goodwill											$ 318,275	318,275			320,025
Payment of deferred underwriter compensation												5,250			0
Repayment of note payable												523			0
Secondary Offering | Successor
Business Acquisition [Line Items]
Transaction-related costs												700
Payment of deferred underwriter compensation												$ 700
Insurance Claims | Successor
Business Acquisition [Line Items]
Reimbursement from insurance claims															$ 500