SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
Jun. 30, 2017
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts in the condensed consolidated financial statements and accompanying notes. Significant estimates and assumptions are used for, but not limited to: (1) the valuation of accounts receivable; (2) goodwill, trade names, and other intangible assets; (3) other long-lived assets; (4) share-based compensation; (5) accruals for health, workers’ compensation and professional liability claims; (6) valuation of deferred tax assets; (7) purchase price allocation; (8) derivative liability; (9) legal contingencies; (10) contingent considerations; (11) income taxes; and (12) sales and other non-income tax liabilities. Accrued insurance claims and reserves include estimated settlements from known claims and actuarial estimates for claims incurred but not reported. Actual results could differ from those estimates. Recently Adopted Accounting Pronouncements In August 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments, which amends the guidance in ASC 230 on the classification of certain cash receipts and payments in the statement of cash flows. This update intended to reduce the diversity that has resulted from the lack of consistent principles on this topic by adding or clarifying guidance on eight cash flow issues, including: debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods. Early adoption was permitted. The Company elected to early adopt this standard in its first quarter of 2017, applying the guidance retrospectively with no material impact on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718), Improvements to Employee Share-Based Payment Accounting. The Company adopted this guidance in the first quarter of 2017. ASU 2016-09 eliminates the requirement to delay the recognition of excess tax benefits until they reduce current taxes payable. Required method of adoption is modified retrospective transition method. Upon adoption, previously unrecognized excess tax benefits of $1.3 million had no impact on the Company's accumulated deficit balance as the related deferred tax assets were fully offset by a valuation allowance. ASU 2016-09 also requires excess tax benefits and deficiencies to be recognized prospectively in the provision for income taxes rather than additional paid-in capital. As a result of the adoption, the Company's provision for income taxes was not impacted due to its full valuation allowance. Additionally, as permitted by the ASU, the Company elected to account for forfeitures as they occur rather than estimate expected forfeitures using a modified retrospective transition method. As a result, the Company recorded a cumulative-effect adjustment of $0.5 million to accumulated deficit and lower share-based compensation expense of $0.1 million compared to the amount of expense that would have been recorded for its first quarter of 2017. Share-based compensation expense compared to the amount that would have been recorded for the second quarter of 2017 was less than $0.1 million. Under ASU 2016-09, the threshold for awards to qualify for equity treatment permits withholding up to the maximum statutory tax rates in the applicable jurisdictions. Prior to the adoption of ASU 2016-09, the Company did not allow an award to be partially settled in cash in excess of the minimum statutory withholding requirements. Subsequent to the adoption of the standard, the Company will allow awards to be partially settled at the maximum applicable statutory rates. Finally, ASU 2016-09 requires excess tax benefits to be presented as a component of operating cash flows rather than financing cash flows. The Company elected to adopt this requirement prospectively and accordingly, prior periods have not been adjusted. Excess tax benefits were not material for all periods presented. In March 2016, the FASB issued ASU No. 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments, to clarify the steps required to assess whether a call or put option meets the criteria for bifurcation as an embedded derivative. ASU 2016-06 is effective for interim and annual periods beginning after December 15, 2016, and requires a modified retrospective approach to adoption. The Company adopted this guidance in the first quarter of 2017. The adoption of this guidance had no impact on the Company's results of operations.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts in the condensed consolidated financial statements and accompanying notes. Significant estimates and assumptions are used for, but not limited to: (1) the valuation of accounts receivable; (2) goodwill, trade names, and other intangible assets; (3) other long-lived assets; (4) share-based compensation; (5) accruals for health, workers’ compensation and professional liability claims; (6) valuation of deferred tax assets; (7) purchase price allocation; (8) derivative liability; (9) legal contingencies; (10) contingent considerations; (11) income taxes; and (12) sales and other non-income tax liabilities. Accrued insurance claims and reserves include estimated settlements from known claims and actuarial estimates for claims incurred but not reported. Actual results could differ from those estimates.

Recently Adopted Accounting Pronouncements

In August 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments, which amends the guidance in ASC 230 on the classification of certain cash receipts and payments in the statement of cash flows. This update intended to reduce the diversity that has resulted from the lack of consistent principles on this topic by adding or clarifying guidance on eight cash flow issues, including: debt prepayment or debt extinguishment costs, contingent consideration payments made after a business combination, and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods. Early adoption was permitted. The Company elected to early adopt this standard in its first quarter of 2017, applying the guidance retrospectively with no material impact on its consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation (Topic 718), Improvements to Employee Share-Based Payment Accounting. The Company adopted this guidance in the first quarter of 2017. ASU 2016-09 eliminates the requirement to delay the recognition of excess tax benefits until they reduce current taxes payable. Required method of adoption is modified retrospective transition method. Upon adoption, previously unrecognized excess tax benefits of $1.3 million had no impact on the Company's accumulated deficit balance as the related deferred tax assets were fully offset by a valuation allowance. ASU 2016-09 also requires excess tax benefits and deficiencies to be recognized prospectively in the provision for income taxes rather than additional paid-in capital. As a result of the adoption, the Company's provision for income taxes was not impacted due to its full valuation allowance. Additionally, as permitted by the ASU, the Company elected to account for forfeitures as they occur rather than estimate expected forfeitures using a modified retrospective transition method. As a result, the Company recorded a cumulative-effect adjustment of $0.5 million to accumulated deficit and lower share-based compensation expense of $0.1 million compared to the amount of expense that would have been recorded for its first quarter of 2017. Share-based compensation expense compared to the amount that would have been recorded for the second quarter of 2017 was less than $0.1 million. Under ASU 2016-09, the threshold for awards to qualify for equity treatment permits withholding up to the maximum statutory tax rates in the applicable jurisdictions. Prior to the adoption of ASU 2016-09, the Company did not allow an award to be partially settled in cash in excess of the minimum statutory withholding requirements. Subsequent to the adoption of the standard, the Company will allow awards to be partially settled at the maximum applicable statutory rates. Finally, ASU 2016-09 requires excess tax benefits to be presented as a component of operating cash flows rather than financing cash flows. The Company elected to adopt this requirement prospectively and accordingly, prior periods have not been adjusted. Excess tax benefits were not material for all periods presented.

In March 2016, the FASB issued ASU No. 2016-06, Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments, to clarify the steps required to assess whether a call or put option meets the criteria for bifurcation as an embedded derivative. ASU 2016-06 is effective for interim and annual periods beginning after December 15, 2016, and requires a modified retrospective approach to adoption. The Company adopted this guidance in the first quarter of 2017. The adoption of this guidance had no impact on the Company's results of operations.