Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating activities
Net income (loss)	$ (47,843)	$ 5,733
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	20,096	17,046
Amortization of deferred financing costs and debt discount	354	507
Equity‑based compensation	74,997	4,907
Extinguishment of debt	638	2,886
Provision for doubtful accounts	321	219
Loss (gain) on disposal of property and equipment	(31)	1,091
Deferred income taxes	(4,913)	(511)
Changes in assets and liabilities:
Accounts receivable	(3,508)	897
Other receivables	(542)	(552)
Prepaid expenses and other assets	(2,911)	(1,119)
Accounts payable	(2,834)	(3,585)
Accrued payroll and related liabilities	(3,781)	(2,659)
Accrued expenses and other liabilities	36	113
Deferred revenue	10,589	3,514
Income taxes receivable	(3,137)	(1,356)
Net cash provided by operating activities	37,531	27,131
Investing activities
Acquisitions of businesses, net of cash acquired		(27,824)
Purchases of property and equipment	(15,179)	(4,552)
Net cash used in investing activities	(15,179)	(32,376)
Financing activities
Proceeds from the issuance of long‑term debt		38,825
Payments on long‑term debt	(225,140)	(58,514)
Deferred financing payments	(50)	(500)
Payments on capital lease obligations	(2,190)	(812)
Proceeds from sale of equity interests	100	250
Purchases of equity interests	(731)	(2,745)
Taxes paid for net settlements of restricted stock vesting	(10,858)
Distribution payments	(8,500)
Proceeds from the issuance of common stock in initial public offering, net of fees	237,977
Net cash used in financing activities	(9,392)	(23,496)
Net increase (decrease) in cash	12,960	(28,741)
Cash at beginning of period	6,962	32,635
Cash at end of period	19,922	3,894
Supplemental disclosure of cash flow information
Disposal of property and equipment acquired through capital leases	283
Property and equipment acquired through capital leases	2,156
Purchase of property and equipment in accounts payable	2,069	$ 983
IPO related costs in accounts payable	$ 3,426