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Revenue Recognition and Accounts Receivable link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Disposals link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Held for Sale and Discontinued Operations link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Equipment and Other Fixed Assets link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Goodwill and Identifiable Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Fair Value of Assets and Liabilities link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Derivative Instruments and Hedging Activities link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Accounts Payable and Accrued Expenses link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Earnings (Loss) Per Share link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Restructuring Charges link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - General Information (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Revenue Recognition and Accounts Receivable (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Disposals (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Held for Sale and Discontinued Operations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Equipment and Other Fixed Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Goodwill and Identifiable Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Fair Value of Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Derivative Instruments and Hedging Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Accounts Payable and Accrued Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Stockholders' Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Earnings (Loss) Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - General Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Revenue Recognition and Accounts Receivable - Composition of Net Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Revenue Recognition and Accounts Receivable - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Acquisitions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Acquisitions - Fair Value of Net Assets Acquired (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Disposals - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Disposals - Carrying Amounts of Major Classes of Assets and Liabilities Classified As Held for Sale (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Held for Sale and Discontinued Operations - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Held for Sale and Discontinued Operations - Summary of the Major Classes of Assets and Liabilities Classified as Held for Sale (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Held for Sale and Discontinued Operations - Summary of the Results of Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Held for Sale and Discontinued Operations - Significant Non-Cash Operating and Investing Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Held for Sale and Discontinued Operations - Significant Non-Cash Operating and Investing Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Equipment and Other Fixed Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Segment Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Segment Information - Schedule of Segment Reporting Information, by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Segment Information - Reconciliation of Total Adjusted EBITDA to Consolidated Income (Loss) Before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Segment Information - Patient Equipment Depreciation by Reportable Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Goodwill and Identifiable Intangible Assets - Change in Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Goodwill and Identifiable Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Goodwill and Identifiable Intangible Assets - Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Goodwill and Identifiable Intangible Assets - Future Amortization Expense of Identified Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Fair Value of Assets and Liabilities - Valuation of Financial Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Derivative Instruments and Hedging Activities - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Derivative Instruments and Hedging Activities - Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Derivative Instruments and Hedging Activities - Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Accounts Payable and Accrued Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Debt - Summary of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Debt - Summary of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Debt - Credit Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Debt - Secured Term Loan (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Debt - Revolving Credit Facility (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Debt - Senior Unsecured Notes (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Stockholders' Equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Stockholders' Equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Stockholders' Equity - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Stockholders' Equity - Restricted Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Earnings (Loss) Per Share - Basic and Diluted Earnings (Loss) per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Earnings (Loss) Per Share - Antidilutive Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Leases - Lease Costs and Sublease Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Leases - Weighted Average Remaining Lease Terms and Discount Rates (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Leases - Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Leases - Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Leases - Cash Flow and Supplemental Non-Cash Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Restructuring Charges (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Restructuring Charges (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink