Income Taxes - Additional information (Detail) $ in Thousands		1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 28, 2016 shares	Jun. 30, 2016 USD ($) shares	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($) Agreement shares	Dec. 31, 2015 USD ($)
Tax Credit Carryforward [Line Items]
Effective income tax rate				39.50%
Effective income tax rate reconciliation noncontrolling interest				2.10%
Net deferred tax assets		$ 194,240	$ 194,240	$ 194,240	$ 117,358
Net deferred tax liabilities		1,167	1,167	1,167	$ 0
Total liability related to uncertain tax positions		$ 300	$ 300	$ 300
Number of tax receivable agreements | Agreement				2
Applicable percentage of cash savings		85.00%	85.00%	85.00%
Percentage of remaining tax savings				15.00%
Income tax rate maximum tax liability				3.50%
Tax benefit obligation		$ 212,336	$ 212,336	$ 212,336
Continuing LLC Owners [Member]
Tax Credit Carryforward [Line Items]
Decrease in deferred tax assets			(7,638)
Deferred tax asset		89,876	89,876	89,876
Deferred tax liability		$ 78,152	78,152	$ 78,152
Class B Common Stock [Member] | Continuing LLC Owners [Member]
Tax Credit Carryforward [Line Items]
Number of shares exchanged | shares	7,891,160	7,891,160		7,891,160
Canada [Member]
Tax Credit Carryforward [Line Items]
Net operating loss carryforwards		$ 1,573	$ 1,573	$ 1,573
Operating loss carryforwards, expiration date				2034