Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

No definition available.

Long-Term Debt - Additional Information (Details)		1 Months Ended	3 Months Ended		6 Months Ended		9 Months Ended	12 Months Ended
Long-Term Debt - Additional Information (Details)	Nov. 15, 2013 USD ($)	May 31, 2017 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	May 06, 2016 USD ($)	Apr. 21, 2016 USD ($)	Dec. 31, 2015 USD ($)
Debt And Credit Facility [Line Items]
Cash			$ 1,617,000		$ 1,617,000
Gain on extinguishment of debt			0	$ 38,497,000	0	$ 38,497,000	$ (37,893,000)
Gain on extinguishment of debt, tax effect							$ 13,451,000
Debt instrument, face amount		$ 5,000,000
Debt instrument, stated interest rate (as a percent)		9.55%
Debt instrument, periodic payment, percentage of principal		1.00%
Debt instrument, periodic payment of principal		$ 50,000
Line of Credit [Member] \| 2013 Senior Credit Facility [Member]
Debt And Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 370,000,000
Outstanding principal balance			$ 0		$ 0
Maximum percentage available on line of credit due to exceeded maximum leverage ratio					25.00%
Threshold from sale of assets used towards mandatory prepayments	$ 30,000,000
Line of Credit [Member] \| 2013 Senior Credit Facility [Member] \| Leverage Ratio, Greater Than 2.50 [Member]
Debt And Credit Facility [Line Items]
Maximum leverage ratio			2.5		2.5
Excess cash flow repayment, percentage			50.00%		50.00%
Line of Credit [Member] \| 2013 Senior Credit Facility [Member] \| Leverage Ratio, Greater than 2.00 but Less than 2.50 [Member]
Debt And Credit Facility [Line Items]
Maximum leverage ratio			2		2
Excess cash flow repayment, percentage			25.00%		25.00%
Line of Credit [Member] \| 2013 Senior Credit Facility [Member] \| Leverage Ratio, Less Than or Equal to 2.00 [Member]
Debt And Credit Facility [Line Items]
Excess cash flow repayment, percentage			0.00%		0.00%
Line of Credit [Member] \| 2013 Senior Credit Facility [Member] \| Base Rate [Member]
Debt And Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Line of Credit [Member] \| 2013 Senior Credit Facility [Member] \| LIBOR [Member]
Debt And Credit Facility [Line Items]
Basis spread on variable rate (as a percent)	3.50%
Secured Debt [Member] \| 2013 Senior Credit Facility [Member]
Debt And Credit Facility [Line Items]
Debt, unamortized discount	$ 4,356,000
Debt issuance costs	5,119,000
Secured Debt [Member] \| 2013 Term Loan Facility [Member]
Debt And Credit Facility [Line Items]
Outstanding principal balance	325,000,000		$ 200,959,000		$ 200,959,000			$ 202,000,000
Proceeds from 2013 Term Loan Facility	$ 323,375,000
Debt instrument, discount percentage	0.50%
Debt, unamortized discount	$ 1,625,000		3,386,000		$ 3,386,000			3,851,000
Percent of amendment fee paid to consenting lenders					0.25%
Principal payment on Term Loan Facility					$ 23,060,000
Term after which excess cash flow is paid (in days)					95 days
Long term debt, gross less unamortized discount and debt issuance costs			196,423,000		$ 196,423,000
Unamortized debt issuance costs			1,150,000		1,150,000
Secured Debt [Member] \| 2013 Term Loan Facility [Member] \| Level 2 [Member]
Debt And Credit Facility [Line Items]
Fair market value of debt			$ 173,830,000		$ 173,830,000			163,115,000
Secured Debt [Member] \| 2013 Term Loan Facility [Member] \| Base Rate [Member]
Debt And Credit Facility [Line Items]
Variable rate floor (as a percent)	2.00%
Secured Debt [Member] \| 2013 Term Loan Facility [Member] \| LIBOR [Member]
Debt And Credit Facility [Line Items]
Variable rate floor (as a percent)	1.00%
Revolving Credit Facility [Member] \| 2013 Senior Credit Facility [Member]
Debt And Credit Facility [Line Items]
Repurchase face amount									$ 62,447,000	$ 8,705,000	$ 29,829,000
Repurchase amount, fair value									$ 25,978,000	$ 3,787,000	$ 10,947,000
Percentage of face value repurchased									41.60%	43.50%	36.70%
Write off of deferred debt issuance cost								545,000
Write-off of debt discount								$ 1,561,000
Revolving Credit Facility [Member] \| 2013 Revolving Loan Facility [Member]
Debt And Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 45,000,000
Maximum leverage ratio			4.50		4.50
Available portion currently available revolving facility			$ 11,250,000		$ 11,250,000
Unutilized portion of the 2013 Revolving Loan Facility			41,148,000		41,148,000
Letter of Credit [Member] \| 2013 Senior Credit Facility [Member]
Debt And Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 5,500,000
Letter of Credit [Member] \| 2013 Revolving Loan Facility [Member]
Debt And Credit Facility [Line Items]
Letters of credit outstanding			$ 3,852,000		$ 3,852,000