0001001 - Document - Cover Page
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1001002 - Statement - Condensed Consolidated Balance Sheets
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1002003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)
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1003004 - Statement - Condensed Consolidated Statements of Operations
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1004005 - Statement - Condensed Consolidated Statements of Shareholders' Equity
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1005006 - Statement - Condensed Consolidated Statements of Cash Flows
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2101101 - Disclosure - Presentation and Summary of Significant Accounting Policies
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2202201 - Disclosure - Presentation and Summary of Significant Accounting Policies (Policies)
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2103102 - Disclosure - Revenue Recognition
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2304301 - Disclosure - Revenue Recognition (Tables)
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2405401 - Disclosure - Revenue Recognition - Additional Information (Details)
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2406402 - Disclosure - Revenue Recognition - Summary of Contract Balances (Details)
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2407403 - Disclosure - Revenue Recognition - Remaining Performance Obligation (Details)
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2407403 - Disclosure - Revenue Recognition - Remaining Performance Obligation (Details)
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2408404 - Disclosure - Revenue Recognition - Disaggregated Revenue (Details)
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2109103 - Disclosure - Leases
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2310302 - Disclosure - Leases (Tables)
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2411405 - Disclosure - Leases - Additional Information (Details)
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2412406 - Disclosure - Leases - Supplemental Balance Sheet Information (Details)
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2413407 - Disclosure - Leases - Lease Cost Information (Details)
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2414408 - Disclosure - Leases - Weighted Average Information (Details)
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2415409 - Disclosure - Leases - Summary of Operating Lease Maturities (Details)
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2415409 - Disclosure - Leases - Summary of Operating Lease Maturities (Details)
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2416410 - Disclosure - Leases - Lease Rental Receivables (Details)
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2117104 - Disclosure - Declaration of Dividend Payable
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2418411 - Disclosure - Declaration of Dividend Payable (Details)
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2119105 - Disclosure - Earnings Per Common Share
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2320303 - Disclosure - Earnings Per Common Share (Tables)
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2421412 - Disclosure - Earnings Per Common Share - Additional Information (Details)
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2422413 - Disclosure - Earnings Per Common Share - Basic Earnings Per Common Share (Details)
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2423414 - Disclosure - Earnings Per Common Share - Diluted Earnings per Share for Class A Common Shares Using If-Converted Method (Details)
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2424415 - Disclosure - Earnings Per Common Share - Diluted Earnings per Share for Class B Common Shares Using Two-Class Method (Details)
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2125106 - Disclosure - Stock-Based Compensation
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2426416 - Disclosure - Stock-Based Compensation (Details)
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2127107 - Disclosure - Fair Value of Financial Instruments
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2328304 - Disclosure - Fair Value of Financial Instruments (Tables)
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2429417 - Disclosure - Fair Value of Financial Instruments (Details)
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2130108 - Disclosure - Stock Repurchases
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2431418 - Disclosure - Stock Repurchases (Details)
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2132109 - Disclosure - Comprehensive Income
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2133110 - Disclosure - Industry Segments
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2334305 - Disclosure - Industry Segments (Tables)
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2435419 - Disclosure - Industry Segments - Additional Information (Details)
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2436420 - Disclosure - Industry Segments - Segment Information (Details)
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2137111 - Disclosure - Major Customers
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2138112 - Disclosure - Contingencies
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2139113 - Disclosure - Subsequent Event
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2440421 - Disclosure - Subsequent Event (Details)
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