Debt - Additional Information (Details)			3 Months Ended
	Feb. 06, 2018 USD ($)	Jan. 23, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Line of Credit | 2018 Senior Secured Credit Facilities
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 925,000,000
Additional accordion option		$ 400,000,000.0
Gross value of assets included in calculations under credit agreement				$ 1,800,000,000
Borrowing base collateral value				$ 1,100,000,000
Maximum leverage ratio			60.00%
Minimum base coverage ratio			1.00
Minimum fixed charge coverage ratio			1.50	1.40
Minimum borrowing base debt service coverage ratio			2.00
Minimum tangible net worth requirement			$ 900,000,000
Minimum tangible net worth requirement, additional percentage of net equity proceeds			70.00%
Maximum recourse secured debt ratio			0.2
Line of Credit | 2018 Senior Secured Credit Facilities | Minimum
Debt Instrument [Line Items]
Commitment fee percentage			0.30%
Commitment threshold			50.00%
Line of Credit | 2018 Senior Secured Credit Facilities | Maximum
Debt Instrument [Line Items]
Commitment fee percentage			0.40%
Commitment threshold			50.00%
Line of Credit | 2018 Senior Secured Credit Facilities | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate		2.50%
Line of Credit | 2018 Senior Secured Credit Facilities | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			2.35%
Line of Credit | 2018 Senior Secured Credit Facilities | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			3.00%
Line of Credit | 2018 Senior Secured Credit Facilities | Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			1.35%
Line of Credit | 2018 Senior Secured Credit Facilities | Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			2.00%
Line of Credit | Senior Secured Term Loan A Facility
Debt Instrument [Line Items]
Term of debt		5 years
Line of credit facility, maximum borrowing capacity		$ 525,000,000.0
Proceeds from lines of credit		$ 517,000,000
Repayments of lines of credit	50,000,000
Line of Credit | Senior Secured Term Loan A Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			2.50%
Line of Credit | Revolving Credit Facility | 2018 Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Term of debt		3 years
Line of credit facility, maximum borrowing capacity	450,000,000	$ 400,000,000
Extension term		1 year
Increase in credit commitments	$ 50,000,000
Line of Credit | Letter of Credit | 2018 Senior Secured Credit Facilities
Debt Instrument [Line Items]
Repayments of lines of credit		$ 33,600,000
Term Loans | 2015 Senior Secured Term Loan B Facility
Debt Instrument [Line Items]
Repayments of lines of credit		806,900,000
Term Loans | 2015 Senior Secured Term Loan B Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate			3.75%
Construction Loan | Clearfield, Utah and Middleboro Massachusetts Construction Loans
Debt Instrument [Line Items]
Indebtedness repaid		$ 20,900,000